KPV
Lys-Pro-Val — research use only.
Overview
KPV (Lys-Pro-Val) is supplied by Scientipeptides for laboratory research and development use only. Every batch is validated by reversed-phase HPLC to 99% HPLC purity and ships with a documented Certificate of Analysis. Not for human or veterinary use.
Specification
CAS #: 67727-97-3 · Formula: C16H30N404 · Molecular Weight: 341.40 g/mol · Purity: 99% HPLC
Potential research application
RESEARCH USE ONLY – REVIEW STUDIES: KPV is a potent anti-inflammatory peptide that has shown promise in a number of disease conditions. The most active research is in the treatment of inflammatory bowel disease where the peptide has showed substantial promise. KPV has been shown in animal studies to be safe and effective when administered orally, intravenously, subcutaneously and transdermal. Research in wound healing also reveals that KPV and other alpha-MSH derivatives may offer a host of benefits that speed wound healing, reduce infection, fight inflammation, and lead to better cosmetic results. KPV and similar peptides could become mainstays not just in wound healing, but in scar reduction following surgery.
Certificate of Analysis
Peptides validated with documented Certificate of analysis® for all products. See all COAs.
Third-party tested for Purity
Backed by industry-leading research and best practices. All products are fully HPLC tested for purity.
Same day delivery
Orders placed before 2pm EST (Mon–Fri) or 3pm Saturday ship the same day, using USPS for fastest delivery.
Additional information
- CAS #
- 67727-97-3
- Formula
- C16H30N404
- Molecular Weight
- 341.40 g/mol
- Purity
- 99% HPLC
335 reviews for KPV
had a minor shipping hiccup and support resolved it same day. Our in-house chromatogram was clean with no unexpected side peaks and I already pointed two colleagues here.
This is our third round from Scientipeptides and performance has been steady across our bench assays every time. Each shipment arrived complete with nothing missing and documentation was always included. Already planning the next restock.
KPV COA listed net vs gross peptide mass clearly plus endotoxin and sterility figures and molecular weight and sequence but the label print was slightly faint and the invoice formatting was very basic, still satisfied and would reorder.
KPV seals intact bulk pricing worked
Crimp and stopper were tight on every vial.. great value for our lab budget!!
kpv restocks have been reliable when other vendors run dry. Reconstitution notes on the insert were pretty minimal but the peptide has been excellent in our bench work.
KPV cleared international shipping without delays and the storage and handling instructions on the label were clear for our freezer log. The reconstitution notes were pretty minimal compared to what we usually expect, but every vial has been clean and we would order again.
Storage and handling instructions were clear and saved us a guess on temp…
kpv tracking spot on.. thanks
Consistent every time…
Verry good KPV.
Verry good KPV.
kpv storage and handling instructions were clear and our institutional PO went through without hassle, though the label print was slightly faint and the desiccant pack had shifted in the box but we would reorder.
cold-chain packaging arrived still cold with ice packs intact.
Every KPV vial we have opened arrived with tamper-evident seals fully intact, no loosening around the crimp. That kind of detail makes incoming inspection and freezer logging much easier in the lab.
KPV COA had full sequence listed.
KPV has performed consistently in our bench assays across two separate lots now. Results line up run to run and reconstitution behavior has been predictable every time. That kind of reliability is reassuring when you are building out a longer study.
Rec'd a clean dissolve on reconstitution with no cloudiness or particulate.
Highly recommend.
Accurate fill per vial COA in the box.. nailed it!!
Bulk order handled fine.
KPV rec'd clean dissolve, no cloudiness.
Institutional PO for our KPV restock was straightforward and procurement cleared it without a single follow-up.
We switched peptide sourcing here after spotty documentation elsewhere and have not looked back. LC-MS identity lined up with the expected sequence and they stock less common research peptides we could not find domestically. Bench prep has been straightforward on every lot.
The KPV COA lot number matched the vial label exactly which is the first thing I verify on intake. Restock timing on this one can run slow and they used a bit more packaging than a single vial really needed. Still satisfied with the material overall and I would reorder when we get low.
Stated qty was right in the vial with almost no loss, exactly what we needed for the run!!
rec'd ok, faint label.
Support was responsive and actually knew the specs when I asked about international shipping. Delivery ran a little past the estimate but the cold pack was still solid on arrival. Would order again for sure.
KPV has become one of our go-to peptides for routine bench work. We ran our own analytical check on the latest lot and the purity held up against what was printed on the COA. Reconstitution was straightforward and the material behaved predictably across repeats. Packaging and labeling were clear enough that new students on the team could handle it without confusion. We'll keep ordering from Scientipeptides for this one.
We moved our KPV program over from another vendor and the institutional PO ordering here was straightforward, no back-and-forth on paperwork…
We switched to KPV from Scientipeptides a few months back and the batch documentation has been thorough enough to file straight into our system without cleanup. Tamper-evident seals on every vial were intact on arrival which is always reassuring during intake. Restock timing on this peptide can run a little slow so I order earlier than I used to. Still the lots themselves have been steady and the COA details make audit prep much easier. Very glad we made the move when we did.
Great KPV thanks!!
Gel packs still frozen.
KPV is hard to keep on the shelf and SciPeptides has rec'd it reliably every time we needed a refill. Temp looked stable on arrival w/ good qty in stock!!
KPV seals tight..
I could not find a lot COA from an older shipment and support tracked it down within a day. The repsonse was detailed enough to drop straight into our binder. Packaging has stayed consistent across reorders and labels match what we expect. I have recommended them to two other groups running similar assay work. That kind of follow-through helps when procurement audits come around.
kpv has been consistent batch to batch and the COA came in the shipment.. checkout on the site was a little clunky but I'd reorder.
Our KPV restock arrived in cold-chain packaging that was still cold when we opened it, which matters for lyophilized material sitting on a loading dock. Scientipeptides has been reliable for a compound that is not always easy to source and we have not had a backorder surprise yet, the last two lots matched prior COAs and bench behavior.
very good thanks
KPV dissolved clean, support knew their stuff, tracking updates sparse…
KPV shipped internationally fine.
KPV purity held up on our bench check..
KPV HPLC matched COA, bulk qty helped, bit overpacked but solid
great kpv batch docs easy to file
KPV arrived with clear reconstitution guidance in the paperwork, which saved us a step in the prep log. We followed their notes and the peptide went into solution cleanly without any particulate. Exactly the kind of detail you want from a supplier…
KPV shipped with third-party lab results on file and the lyophilised cake was intact with no clumping so bench prep was straightforward.
KPV specs & recon notes spot-on.
Really appreciate it.
International KPV shipping was handled smoothly, customs paperwork was ready, and cold-chain packaging stayed intact.
Reorder was quick and accurate like the first time, though the desiccant pack had shifted a bit in the box and I would still buy again.
KPV perfect, thanks.
Reached out with a few technical documentation questions before placing the order and got quick, precise answers back. When the shipment landed we ran in-house HPLC and the purity matched what the COA stated with no surprises in the chromatogram. Paperwork was complete and easy to archive for our internal QA process. Delivery was on the faster side of what we usually see from peptide vendors. Overall this felt like a supplier that understands what research labs actually need.
KPV qty matched the label on weigh-in and the desiccant pack was included and intact in the box. Rec'd it, logged the lot, back to work.
Exactly as described thanks
kpv w/ bac water clean gel packs held temp invoice pretty bare tho
Pointed a postdoc here after reconstitution went smooth. It dropped into bacteriostatic water with no fuss, no particulate, and the solution stayed clear through prep. Exactly the kind of reliability you want when you are building out a peptide panel.
kpv showed up still cold w/ reliable restocks on a peptide thats usually hard to source.
KPV stability/TFA data solid, recon notes pretty minimal though.
Our KPV shipment arrived in insulated packaging with gel packs still partially frozen. Vials were cool on receipt and labels showed no heat exposure. We logged temps at unpacking and everything looked within range for lab storage. Cold chain clearly held through transit.
KPV cleared international shipping without customs drama and Scientipeptides has been a reliable default for our lab reorders.
We have been trying to keep this tripeptide on the bench for months and it is genuinely exciting to finally have a supplier that keeps restocks steady even when it is hard to source elsewhere. We ran our own analytical check against the reported purity and the numbers held up cleanly without any surprises. Every lot has arrived with documentation that made filing quick and the turnaround on reorders has been reliable in a way that saves us a lot of planning stress. For a compound that goes out of stock everywhere else this kind of consistency feels rare. We are already lining up the next order before this batch runs out.
We placed a bulk KPV order for the lab and Scientipeptides handled the multi-vial qty without mix-ups. Turnaround was faster than our old supplier and everything showed up padded and cold. Pulled a sample for in-house analytical and purity lined up with what the COA stated. Labels, lot numbers, and documentation all matched. This is our default source now.
turnaround on our last order beat the quoted window and the certificate of analysis was included in the box. Lot numbers matched the vial labels and our reorder went through with the correct SKU and qty. Packaging held up fine in transit too. Already lined up the next restock from them.
Endotoxin and sterility figures were documented on the COA, institutional PO ordering was straightforward, and customer support was responsive and knowledgeable when we had a documentation question.
Reconstitution has been the smoothest step in our workflow with this supplier. Material goes into bacteriostatic water cleanly with no particulate and pulls into solution fast. Vials arrive well labeled and seals look solid every time. We have run several dilution series without solubility issues. That consistency makes plate setup much less stressful.
We have run KPV through several bench assays now and performance has been consistant lot to lot which is exactly what we need for reproducible lab work. The COA purity figures align with what we see in our own checks and reconstitution is clean every time. Shipping was fast w/ temp packs still cold on arrival. Already added Scientipeptides to our short list for the next reorder.
Good KPV, slow support.
KPV meets spec.
Fast ship. Good.
Great value..
kpv arrived with shelf-life data on the COA and my reorder matched the original qty and catalog spec exactly.
Perfect very happy
LC-MS identity lined up with the stated sequence and every vial had a tight crimp with a clean stopper seal.
The KPV vial matched the stated quantity on the label with basically no handling loss during prep.
KPV arrived in plain outer packaging with no obvious branding on the box. Inside, the vial and COA matched the order without any mix-ups.
KPV from Scientipeptides again and still no complaints. Support answered a documentation question same day, crimp/stopper seal on every vial solid, LC-MS identity lined up w/ the stated sequence.
KPV labels are legible/durable and shelf-life data was right on the insert.
KPV was on our list but we also grabbed a few related peptides in the same order because the catalogue covers most of what our program runs. One checkout, one shipment, done. Saves a lot of admin time.
kpv arrived on schedule and the vial looked exactly like prior lots we've used. I had a couple technical questions about the batch documentation and support answered them fast with clear detail.. No back-and-forth needed. Paperwork was complete enough to drop straight into our filing system. We've already placed a follow-up order for the same SKU.
Excellent KPV.
Really good thanks…
KPV good cap littl stiff
KPV came with stability and shelf-life data documented on the COA, which made it easy to plan storage in our peptide inventory. Nice to see that level of detail without having to chase it down separately.
switched our peptide sourcing here and the insulated box with gel packs kept everything cool through a warm afternoon delivery. labels and paperwork were clean and the vials looked untouched. the desiccant pack had shifted a little inside the box which was a minor annoyance but nothing was compromised. overall we are happy with the move and will keep ordering.
Support helped us pull a lot-specific COA without any back and forth. Batch-to-batch consistency across two reorders has been tight so far.
We have been ordering KPV from Scientificpeptides for over a year now. Turnaround is consistently fast and usually lands within a few days of checkout. Batch-to-batch consistency has held across three separate reorders, same clean dissolution and matching HPLC profile each time. Reordering is quick and accurate, lot numbers always match the included COA. It is one of those materials we no longer second-guess before adding to a cart.
KPV fill looked right on the mark…
Rec'd our KPV qty w/ cold-chain packaging still cold and gel packs intact.. labels on each vial were legible and held up fine after handling at the bench.
KPV arrived w/ desiccant intact, reconstituted clear/no cloudiness. COA listed low residual TFA. Good lot.
Switched vendors and this KPV had endotoxin and sterility figures on the COA plus discreet unbranded outer packaging.. checkout felt a little clunky and reconstitution notes were thin but glad we moved over!!
KPV recieved perfect
Our latest KPV shipment arrived in secure padding and nothing shifted inside the insulated box. The gel packs were still cold when we opened it, which matters for lyophilized material sitting in a shared mailroom. There was a bit more outer packaging than a single vial really needed, but I would rather that than a crushed shipment. The vial and COA were exactly as ordered. Overall very satisfied with how they handle cold-chain shipping.
Great KPV thanks
Every KPV vial had a tight crimp and the stopper seal looked factory fresh on arrival. Nothing loose or compromised in the shipment… exactly what we want sitting in lab inventory.
switched vendors and the glass vials feel sturdier than what we used to get, no chips or loose crimps…
Everything rec'd complete and qty matched the packing slip with nothing missing from the shipment. Ice packs were still frozen when we opened the box so the cold-chain looked good.
We ordered KPV for a peptide handling comparison and the COA was exactly what I needed up front. Molecular weight and full sequence were printed clearly with no ambiguity. That made cross-checking against our in-house reference straightforward before we even opened the vial. Documentation like that saves time when you are logging lots into the freezer inventory.
KPV COA lot number matched the vial label exactly, and having the rest of the catalogue here keeps our program on one vendor… will keep reordering!!
Every KPV vial in this shipment had tamper-evident seals fully intact with no compromise. We matched batch numbers to the COA before putting them in storage. Labels were clear and the gel packs were still frozen on delivery. Purity figures aligned with prior lots from this supplier. Exactly the consistency we need for ongoing lab work.
Batch-to-batch consistency has been solid across reorders, though tracking updates were a little sparse in transit, still glad we switched.
Great KPV stiff cap
KPV looks grear…
kpv went into bacteriostatic water clean with no cloudiness and the whole order landed faster than our previous supplier ever managed.
This is probably our fifth reorder and the process stays quick and accurate every time. COA lot number matched the vial label exactly, which saves time in the notebook.. One cap was a little stiff to break but the material inside was fine. Support has been solid on prior orders. Still planning to keep this on our standing list.
the desiccant in the KPV box was intact and fully dry which tells me they accounted for moisture during shipping. Lot info on the vial was crisp and easy to read without pulling out a loupe.
bulk pricing worked and they stock peptides our old vendor never had
Glad we switched, KPV batch docs file easily.
Storage and handling instructions were straightforward and easy to follow in the lab, which I really appreciated. Delivery ran a little past the estimated window and restocks on this one can lag, but the material has been consistent and I'd order again.
KPV tracking updates were accurate from label creation through delivery, which I appreciate when coordinating receiving. Checkout on the site was a little clunky, but the product and paperwork were exactly what we needed and I would order again.
Great KPV rec'd
Reliable supplier, clean chromatogram.
KPV labels stayed legible support answered fast gel packs kept temp rock solid!!
The certificate of analysis arrived with the shipment and matched exactly what we needed for our documentation.
KPV glass vials are legit.. so glad we switched!!
We switched from our old supplier and the catalogue breadth has been a huge help for our research program. Less common peptides are actually in stock w/ reasonable lead times instead of endless backorder notices. Definately glad we made the move.
Our KPV order showed up complete with every vial accounted for and nothing missing from the packing list.. Labels were clear and the COA was right in the shipment. Really happy with how organized the whole delivery was!!
kpv rec'd on spec, solid lab supplier
international shipping on KPV was handled smoothly, LC-MS identity lined up with the stated sequence, desiccant was included and intact…
perfecct kpv.. thanks
Love this KPV…
I needed the COA tied to a specific lot number for our receiving log and their team located the exact file without a long email chain. The documentation matched our batch label and made the audit trail straightforward.
KPV vials solid glass.. clear storage notes…
KPV has shown consistent performance in our bench assays across multiple pulls from the same lot.
Switched our KPV source to Scientipeptides and the reconstitution notes in the box saved us a step. Support was quick to answer a labeling question and knew the product well. Happy with the change.
KPV docs perfect, thanks!
Endotoxin and sterility figures were documented clearly on the paperwork which our QA folder appreciates. Procurement got an itemized invoice w/ line-level detail so nothing stalled on their end. Cold-chain packaging looked intact on arrival and the vials were labeled cleanly. We will likely expand the order qty on the next PO…
we switched from another vendor after too many stockouts on less common research peptides. SciPeptides keeps harder-to-find compounds available and when I asked about a particular lot COA they pulled it up the same day. Packaging and labeling have been consistent across orders too. Glad we moved our sourcing here.
kpv COA listed low residual TFA and solvent levels which is exactly what we check before bench prep…
KPV labeling made storage simple.
Good docs..
Grabbed KPV here along with a couple other peptides and having that catalogue breadth kept our whole program on one order.
KPV showed up with the certificate of analysis included in the shipment.
kpv order tracked accurately from label creation through delivery with no weird gaps in transit updates. Inner padding was secure and nothing shifted inside the box, vial arrived upright and the lyophilised material looked undisturbed.. The outer shipper was plain and professional, which our receiving desk appreciates. Invoice formatting was very basic but all the line items and lot info were there. Overall a straightforward shipment we would use again for peptide restocks.
Solid KPV.
PO went through clean, endotoxin and sterility figures were documented on the COA, though the reconstitution notes were pretty minimal and still would reorder.
Clean chromatogram, extra packaging though.
Independent third-party lab testing was posted upfront which put us at ease before we even ordered since we have been burned by vague certificates elsewhere and everything on the report lined up with what we ran in house. Their team answered follow-up questions quickly. Cold-chain packaging arrived intact. We will be back for this line.
Tracking stayed accurate in transit, net peptide content vs gross mass was stated clearly on the docs, and bulk pricing made sense for the larger study we are running. Already passed the vendor name to two colleagues.
The KPV certificate listed low residual TFA which is what we want before we run anything on the bench.
Our lab has reordered KPV a few times now and the vial labels have stayed sharp even after sitting in the cold box. When I needed a specific lot COA they tracked it down same day w/out any runaround. Bench assays have looked consistent batch to batch which is really what keeps us coming back.
The KPV arrived on the day the tracking said it would, which is rare enough that I noticed. Packaging was straightforward and everything inside looked exactly as described on the label.
the COA for our KPV lot listed molecular weight and full sequence which made intake verification easy. We've run it across three bench assays now and performance has been consistent lot to lot. Reconstitution guidance was clear and the lyophilised material looked uniform under inspection. For a peptide we order weekly that repeatability is exactly what we need.
KPV arrived in discreet unbranded outer packaging with nothing on the box that would draw attention at receiving. Inside, the vial was wrapped well and the stopper looked seated properly. We pulled the COA from the shipment and filed it with the lot number without any back-and-forth. Label print was slightly faint under fluorescent light but still readable for cataloging. For a routine peptide restock it was exactly what we needed.
Procurement flagged this KPV order as one of the cleaner ones we have processed lately. The invoice was itemized line by line with SKU, qty, and unit cost spelled out clearly for our PO reconciliation. COA batch numbers matched the vial labels without any back-and-forth. Vial seals were intact and the outer box had no damage in transit. For a peptide we reorder regularly, that level of documentation detail matters.
KPV COA lot matched the vial label.. every reorder
Everything in the shipment arrived complete with nothing missing and labels matched the packing list.. Delivery ran a little past the original estimate but the package showed up intact and we are satisfied overall.
Exactly as described.
Solid KPV, checkout clunky.
perfect order thnks
Opened the shipment and the COA lot number matched the vial label character for character. That kind of alignment matters when you are logging inventory for a multi-step study. Paperwork was organized and the vials were sealed cleanly. We have already queued another reorder from the same catalog line…
Glad we switched…
Great order, extra packaging though.
KPV great value, endotoxin/sterility on COA.. exactly what we need…
KPV showed up in proper cold-chain packaging and the gel packs were still cold when we opened the box. Vial looked fine and we logged it straight into the freezer.
Third reorder, in-house HPLC matched the COA, international shipping cleared customs w/ no delays.
Exactly as described.
Dissolves clean, no cloudiness at all.
Clean chromatogram, no surprise peaks.
We switched to Scientipeptides for KPV after our old source kept going out of stock. They had it available when we needed it and ordering was simple. Glad we made the move.
Ordered KPV for a peptide assay run and independent third-party lab testing was available on request which we appreciated for our internal QA file. The COA in the box matched the lot we received and the vial label was legible.. Packing was secure with no shifting in transit. Reconstitution went clean in our buffer w/ no particulate. Straightforward supplier for research-grade material.
We switched vendors last quarter and batch-to-batch consistency has held across every reorder. Each lot prepped the same in our workflow and the documentation lined up cleanly. Really glad we made the move.
Reliable lab supplier, no complaints.
Scientipeptides has a solid breadth of catalogue for our research program and KPV fit right into what we needed without a custom inquiry. The order showed up packaged well and the COA was in the box, though the desiccant pack shifted around a little during transit and everything else was fine so we will reorder.
KPV lyophilised cake arrived intact with no clumpng or particulate…
Perfect KPV.. thanks
KPV showed up in discreet unbranded outer packaging.. Inner vials were labeled clearly and nothing looked tampered with so receiving was quick.
KPV vial: clear storage/handling, nothing missing.
KPV perfect.. thanks!
PO ordering for KPV through our institution was straightforward and procurement had no issues processing it. The paperwork was clear and we got confirmation quickly.. We've placed two orders this quarter and both shipped on schedule. Labels and COAs matched what we expected. Makes repeat ordering easy for the team…
they fixed shipping fast lot COA too
Everything arrived, LC-MS matched.
Vial crimp and stopper seal were both solid with no looseness after shipping.
KPV cake intact no clump.. looks good
Excelent.. thanks.
KPV gave us clean blanks with no contamination carried into our runs. Checkout on the site was a little clunky.. but the vial itself is reliable and we'd order again…
We picked up KPV along with a few other peptides for an ongoing research program and the catalogue breadth saved us from juggling multiple vendors. Order shipped fast and landed well packed with cold-chain intact. Exactly the kind of turnaround that keeps bench work moving.
LC-MS identity confirmation lined up with the stated sequence on the first pass. Catalogue breadth covers most of what our research program orders without hunting elsewhere.
kpv desiccant was intact the vial seal looked good
The KPV shipment included a clear itemized invoice that procurement signed off on without a fuss, and I have already pointed a couple colleagues their way.
We use KPV as a routine standard in our peptide handling workflow and this lot dissolved cleanly with no cloudiness or particulate after reconstitution. The lyophilized cake was uniform and the vial label matched the included COA. Bench prep was straightforward and we did not need extra filtration steps. Packaging was solid and the material looked unchanged from prior orders. Really pleased with the consistency on this one!!
The KPV shipment included a certificate of analysis with the order, and every field on the COA lined up with what we expected for our lab filing.
Scientipeptides has been easy to work with for our group. They included stability and shelf-life data in the documentation which saved us from digging through old emails.. Reconstitution notes were clear and cold-chain packaging arrived intact. Support answered a quick labeling question the same day. We already added them to our approved vendor list.
KPV COA listed endotoxin and sterility figures.
Strong value on a tight grant budget international shipping landed without drama and the catalogue covers most of what our research program orders in one place.
We've been ordering KPV from Scientipeptides for several months now and it has become a staple in our bench assays. Each lot behaves the same way in our workflows and we haven't seen drift between batches. the reconstitution is clean and our readouts stay consistent run to run. Packaging and documentation have been on point every time. For a peptide we rely on weekly, that kind of reliability matters.
Labels were legible and durable even after sitting in the cold storage rack for a few weeks.
KPV came in discreet unbranded outer packaging and the glass vials felt solid with clean crimp seals.
Solid w/ rec'd…
The catalogue breadth covers what our research program actually needs and the product specs on the site matched what arrived at the bench. Makes ordering feel a lot less like guesswork than it used to.
Verry good KPV.
Great KPV, thanks.
kpv handling notes were clear, tracking updates sparse tho
Perfect, rec'd fast..
good kpv, tracking sparse though.
kpv perfect!!
We have run KPV through several bench assays now and the performance has been consistent lot to lot. Handling during reconstitution has been predictable and our controls look clean every run. Good confidence in keeping this on our approved supplier list.
Inner padding was secure so nothing shifted in transit and every vial arrived exactly where it was packed.
KPV int'l shippng smooth..
KPV bulk order handled perfectly no issues..
Great KPV, thanks!
kpv offers solid value on a tight budget and has worked well as a reference standard while we develop our in-house HPLC method.
itemized invoice bulk multi-vial order handled flawlessly!!
We rec'd KPV and ran our usual in-house check against the COA. Purity lined up with what was stated and its been consistent in bench work since.
back on our third reorder, shelf-life data was easy to find and the COA shipped with every lot.
Plain outer box, dissolved fast in bac water.. slight overpack but solid.
Needed answers on documentation before we ran an assay and support got back fast with the right files. Shipment came in insulated packaging with gel packs and the vials were still cold. They handled a technical question on lot traceability without bouncing me around. Tracking was accurate and delivery landed when expected. Will keep ordering here!!
Emailed a couple technical questions on KPV documentation and got a fast reply, and the COA listed molecular weight plus sequence exactly as we needed for our records.
Tight crimp, broad peptide catalogue.
KPV is reliabe.
Our in-house check confirmed the stated purity w/ no discrepancies.
Submitted a PO through our institutional purchasing portal and the whole process was straightforward with no extra paperwork loops. Shipment arrived with matching documentation and batch info ready for our lab records.
very good.
KPV as always.
Switched suppliers for our tripeptide work and have been really happy. HPLC on the first lot showed a clean chromatogram with no unexpected side peaks. COA was in the shipment and lot numbers matched the vials.. Tracking updates were accurate the whole way, temp looked fine on arrival. Already rec'd a second order w/ the same clean profile.
In-house purity check matched the COA.. solid.
KPV has been consistent across our bench assays on the last few lots. Our in-house analytical check showed purity right where the COA stated. Procurement liked the clear itemized invoicing on the order. Label print was slightly faint on one vial but everything else was spot on and we are happy to keep ordering…
Our in-house HPLC on KPV matched the stated purity on the COA within what we expect for this class of peptide, and the batch paperwork was easy to file with the run. Vial seal and labeling were clean enough that we didnt have to double-check anything before logging it in.
KPV packaging was tight, nothing shifted in transit.
KPV is part of a broader peptide order and the catalogue breadth here saves us from juggling multiple vendors. Had a technical question on batch documentation and got a fast, knowledgeable reply.
KPV reconstituted crystal clear with no cloudiness, very straightfoward to prep in the lab.
KPV orders always ship with clear itemized invoicing that our procurement team can approve without chasing missing line items.
Purity confirmed by our core facility. The vendor was responsive when we requested the raw HPLC file for our records.
Glad we switched, KPV net vs gross peptide content was clearly stated
Suitable as a reference standard for method development and validation work.
KPV restocks here have been reliable when other catalogs were empty, our in-house analytical check matched the COA purity, and overall Scientipeptides has been a steady go-to for our research program.
bulk kpv order handled perfectly
KPV fill weight matched the label on every vial we opened, though restock timing on this one can run slow so I plan ahead more now.
Perfct thanks!!
Verry good, clunky checkout.
KPV arrived with secure padding, nothing shifted, and the order was complete for our reference standard method work.. restock timing on this one can run slow but the material met spec and we would reorder.
KPV dissolves clean, invoicing itemized, label print faint…
The order arrived complete with nothing missing from the shipment.
KPV arrived complete with every item on the packing slip and nothing missing from the box.. The outer packaging was discreet and unbranded which our receiving desk appreciates and the vials inside were labeled clearly so we could log them straight into inventory without any extra sorting.
Ordered KPV on Monday, had it in the lab by Thursday. Turnaround was faster than our usual supplier. Exactly what we needed for the next run…
KPV purity held up on our in-house check again
Excellent KPV.
Batch-to-batch consistency has been excellent across three separate orders for the group. Mass spec confirmed identity every time.
KPV has been a steady addition to our peptide inventory. The HPLC chromatogram was clean with no unexpected side peaks and the peak shape looked exactly like what we expect from prior lots. Batch documentation was thorough and easy to file in our lab binder so audit prep is painless and I don't have to chase anyone for missing paperwork. We've run it across several bench setups now and it behaves the same every time which is exactly what we need from a supplier we reorder from regularly.
KPV third-party COA plus bulk pricing beat our old supplier
The KPV listing on the site had accurate specs that matched what showed up. Our repeat order went through fast and every vial lined up with prior batch docs. COA was in the box and easy to file. Cold-chain packaging was solid. Reordering has been quick and accurate every time.
KPV order checked all the boxes for us. Stability and shelf-life data came with the COA which procurement likes to file and each vial had the full stated quantity with minimal loss at the bottom. Reconstitution was routine and the cold pack was still cold on arrival. We have reordered twice since and both times looked the same which is what you want when you are stocking for a longer protocol and don't want surprises mid-study.
KPV arrived with a COA listing endotoxin and sterility figures in clear detail. That documentation saved us time during material qualification on intake. Exactly the kind of supplier paperwork we look for.
Endotoxin and sterility numbers were right there on the COA, exactly what our lab documenation needs.
We have reordered KPV from Scientipeptides several times now. A carrier delay last month left one box in transit an extra day, and support tracked it down and sent updated cold-chain guidance within hours. The vials still arrived in spec with seals intact. That response is exactly why we stay loyal. Batch docs continue to match the labels every time. Hard to beat that kind of reliability.
Site specs matched what we received.. bulk multi-vial order handled cleanly, low residual TFA on the report and everything lined up with our internal checks…
Plain outer box no logos plus recon guidance in the packging, exactly what we wanted.
KPV vial labels stayed legible and durable through cold storage and repeated handling without smearing or peeling.
Tracking updates were accurate in transit net peptide content vs gross mass was stated clearly on the paperwork and our in-house HPLC matched the stated purity on the COA so we feel confident reordering from here.
KPV vials hit the stated fill with minimal lyophilized loss solubility in bacteriostatic water was immediate and batch-to-batch consistency has been tight since we switched suppliers.
kpv temp held w/ gel packs intact.
Solid KPV, bit overpacked.
KPV has been steady in our bench assays.
Packaging included desiccant and the cold pack was still cold on arrival. Reconstitution was straightforward and the assay data were clean.
reordering KPV through the site was quick and the qty matched what we picked. Stability and shelf-life notes were right on the product page so we filed them with our SOPs. Customer support answered a packaging question same afternoon and knew the peptide specs cold.
kpv stayed cold w/ gel packs docs easy to file…
KPV seals intact, endotoxin and sterility on COA
Customer support was responsive and knowledgeable on our KPV order and got our spec questions answered same day.
KPV shipped w/ reconstitution guidance, gel packs kept temp stable in transit, lyophilized cake looked clean on receipt.
KPV international shipment cleared customs smoothly and arrived with cold packs still in spec. Labels and paperwork were complete, which made receiving straightforward on our end.
Full qty, labeled right.
We switched suppliers for KPV and this shipment set the tone right away. The certificate of analysis was included with the order and every field we needed for our lab records was there. Packaging was professional and the vial arrived with seals intact. Documentation was straightforward to file and we didn't have to email anyone to fill gaps. For a peptide we use regularly, that kind of completeness makes reordering an easy call.
We have been ordering KPV from Scientipeptides for a few months now and the vial crimp and stopper seal have been solid every time. Nothing has shifted or loosened in transit and the stoppers sit flush with no compromise to the closure. That kind of packaging detail matters a lot when you are storing peptide vials in the lab freezer. Easy to trust these for routine bench work.
Easy PO setup…
Solid KPV.
Hard to beat their catalogue breadth when you are running a multi-compound research program and need dependable restocks without hunting vendors.
KPV gave us clean blanks with no contamination carried into subsequent runs.
Fast turnaround on a multi-vial bulk order and they had the less common research peptides we needed without a special request. Cold-chain packaging held up and everything arrived complete.
clean chromatogram, no unexpected side peaks
Material met specification on arrival and stored well at the recommended temperature. No degradation observed over our study window.
weighed the vial before/after reconstitution and got the full stated qty w/ minimal loss, crimp & stopper seal both looked solid on inspection.
KPV lyophilised cake was intact with no clumping or visible fracture. Pulled it straight into prep without any extra handling steps.
KPV LC-MS identity lined up with the expected sequence and for what we pay on a tight research budget the value has been hard to beat without sacrificing documentation or fill accuracy on arrival.
coa had mw/sequence listed, crimp & stopper tight
KPV: in-house HPLC matched COA purity, invoice itemized clean.
KPV qty matched the label storage notes were clear and tracking updates were spot on through delivery..
pricing fits our constrained research budget and they carry less common peptides we couldn't source elsewhere. delivery was fast with a clean turnaround and everything showed up as expected!!
We moved KPV sourcing here after spotty paperwork from our old vendor. In-house HPLC matched the stated purity on the COA on the first run. Product specs listed on the site were accurate down to sequence and fill details. Batch documentation was easy to drop into our QA binder. Delivery took a little longer than the estimate, but the shipment arrived cold and complete. We are keeping Scientipeptides on our approved supplier list.
Bulk pricing on this peptide made our larger study budget workable without splitting vendors. We have reordered twice since and both lots preped the same w/ no surprises.
the reconstitution guidance included with the shipment was clear and matched what we use in our prep SOP, which made bench setup faster than usual. We had the peptide in solution in minutes and the lyophilised material dissolved clean with no clumping or particulate floating around, and the vial fill looked right on the scale check. Documentation was organized enough that our tech could log lot and COA without chasing anyone down. Already on the list for the next round of orders.
KPV came w/ desiccant intact..
Rec'd perfect…
KPV showed up on schedule and reconstituted clean. I emailed support with a storage question and got a knowledgeable reply same afternoon, not a generic template.
We've reordered several times and the glass vials have been consistently high quality on every run. No chips at the rim and the walls look uniform under bench light.. Stopper seating has been reliable too which matters when you're aliquoting frequently. SciPeptides clearly pays attention to the hardware details.
Third order of KPV and the response in our functional assays has been consistent each time. Packaging is lab-appropriate.
KPV rec'd perfect thanks
Tamper-evident seals were intact on every vial and nothing shifted in transit. Clean intake with no repackaging needed on our end.
We keep reordering KPV because the vial labels stay legible even after weeks in the cold room.. print has held up lot to lot without smearing.
Every vial arrived with tamper-evident seals fully intact and nothing in the box looked disturbed. We have placed several orders over the past few months and handling has been uniform each time. Documentation consistently ships with the material so our QC binder stays current without chasing emails. For a supplier we depend on regularly that kind of reliability matters more than flashy branding. No issues on our end so far.
KPV bulk pricing fit our study and tracking stayed accurate door to door!!
The KPV storage and handling instructions on the label were clear and easy to follow in our lab workflow. International shipping was handled smoothly with no customs holdups and the cold packs were still frozen on delivery. Documentation in the package made filing straightforward for our inventory system. We had a couple of follow-up questions on lot numbering and got clear answers back quickly. Will keep this on our approved vendor list…
KPV LC-MS matched.
Tracking stayed accurate the whole way.. really smooth transit…
Padding was secure in transit, clean dissolve on reconstitution w/ no cloudiness, endotoxin/sterility figures documented on the COA, one cap was a little stiff to break but overall very reassured.
We confirm identity on every incoming peptide with LC-MS before it enters our workflow and the spectrum matched the published sequence without any ambiguity. The certificate of analysis was included and lot tracing was straightforward to log. Tracking updates during transit were pretty sparse so I had to check with the carrier myself once. They also shipped everything in a box larger than the order really required which felt like unnecessary filler. None of that changed the bench results though and we will order again when stock runs down.
KPV is one of those peptides thats always sold out elsewhere, glad its actually stocked here.
Reordering KPV through Scientificpeptides has been straightforward on every cycle. The qty and catalog numbers on our PO matched what shipped without correction emails. Lot codes on the vial labels lined up with the COA we rec'd in the box. Fulfillment has been quick enough that we stopped keeping a backup vendor on file. For a peptide we run through regularly, that accuracy saves real bench time…
Our KPV shipment showed up in insulated packaging with gel packs that still felt cold when we opened the box. Vials were labled clearly and everything looked untouched inside.. really nice attention to cold-chain detail.
Peptide catalogue breadth fits our whole research program and reorders stay organized without extra back-and-forth…
In-house HPLC matched the COA exactly.
kpv is one of the less common peptides we needed and they had it in stock, support took about a day to reply but the order itself was smooth!!
Solid ref standard, endotoxin/sterility figures on COA.
The peptide reconstituted to a clear solution and remained stable through our assay timeline. Documentation supported our method validation.
KPV in stock, dissolves fast/clean in bac water
KPV lyophilised cake intact, no clumps!!
Fill mass per vial checked out against the label and the lyophilised cake was intact with no clumping when we opened it, crimp and stopper both looked good so we logged it and moved on without any rework. Clean receipt all around!!
support was responsive and knowledgeable when we had questions about KPV documentation and they pointed us to the right batch info quickly.
kpv showed up in a heavy glass vial, full stated qty, basically zero loss in the cake.
Bulk pricing fit the larger study. KPV reorder quick/accurate. Lyophilised cake intact, no clumping.
order arrived complete w/ full KPV qty and nothing was missing from the packing slip. Labels matched the invoice line for line.
The lyophilised cake arrived fully intact with no clumping visible on inspection. Tamper-evident seals on every vial were unbroken and the crimps looked factory tight. We matched batch numbers to the included COA before bench prep. Reconstitution went smooth and the solution stayed clear throughout handling. For material this sensitive, that packaging standard is exactly what we want!!
Complete order.. perfect
Rec'd perfect thanks!!
Excellent KPV!
Ran our own HPLC against the vendor COA on the latest lot and the main peak area ratio matched the stated purity within what we expect for routine QC. No mystery shoulders, retention time lined up, and the supporting chromatogram in the documentation packet was easy to cross-check. For a meticulous lab that logs everything, that kind of alignment is reassuring!!
Clear invoicing perfect..
Tracking spot-on rec'd…
Opened the vial and the lyophilised cake was fully intact with zero clumping or crumble, which made reconstitution straightforward. Dissolved clean on the first pass and everything looked right under the scope. Will definitely be reordering from here!!
Purity was exactly as stated on the COA. We ran our own HPLC and the trace matched the certificate with no unexpected peaks. Reconstituted cleanly in buffer for our in vitro work.
Perfect KPV thanks!
They tracked down the lot COA I needed for inventory and fixed a misrouted shipment without any runaround.. already pointed a couple colleagues their way.
KPV is one of those harder-to-source research peptides and SciPeptides keeps it in stock. When a carton got delayed in transit they resolved it quickly and still pulled the lot COA I requested that same week. The file matched our receiving log without edits. Less common compounds like this are why we keep ordering here!!
Support answered fast and knew the specs cold. Labels stayed legible after fridge storage and reconstitution gave a clear solution, no cloudiness. Already sent two coworkers the link.
KPV with third-party lab data, solid.
Invoicing was clear and itemized for procurement even though checkout on the site was a little clunky, and I would definitely order again.
Seals intact, labels legibile, reorder was quick but tracking updates were sparse and reconstitution notes pretty minimal still telling colleagues to try them
KPV restocks have been reliable even when its hard to source elsewhere, and reconstitution guidance was included with the shipment. The notes were pretty minimal for our SOP binder, but the material has been clean every lot and we are very happy overall!!
Rec'd KPV w/ third-party lab testing docs available on request, which helped our QA sign-off. Desiccant in the box was intact and the vials looked fine on arrival. Material has performed consistently in our assays so far. Packaging was a bit more than the order really needed, but everything arrived safe. Would reorder for the next study…
KPV showed up with the lyophilised cake intact and no clumping, padding kept everything from shifting in the box and customer support was quick w/ our documentation questions.. exactly what we want from a supplier!!
KPV came in discreet unbranded outer packaging w/ no obvious branding on the shipper and the cold-chain gel packs were still cold when we rec'd it. Everything inside was packed tight so nothing rattled around in transit, which is the kind of boring detail that actually matters when you are trying to get peptides into the lab without drama.
kpv arrived with molecular weight and full sequence listed right on the COA.
It was really helpful that independent third-party lab testing documentation was available before we scaled up our order size. What we saw in-house lined up with what was reported which made the first intake feel low-stress. One vial cap was a little stiff to break during prep which slowed us down briefly. They also sent more outer packaging than the order strictly needed. We are still happy with the material and will probably reorder despite those small logistics frictions.
Reproducible results and clean HPLC traces. We have referenced the provided characterisation data in our internal method reports.
We have standardised on this supplier for KPV because the lot-to-lot variability is minimal. The analytical support is a plus.
Excellent purity for the price point. Have recommended KPV to two collaborating laboratories for their assay development.
Ordered KPV for a research assay series and the lyophilized material was well sealed and fully soluble. Documentation was thorough.
Add a review
Your email address will not be published. Required fields are marked *
Certificate of
Analysis (COA)
Peptides validated with documented Certificate of analysis® for all products. See all COAs.
Download PDF
FAQs
What are Scientipeptides used for?
All Scientipeptides products are sold for research use only. They are not intended for human consumption, therapeutic, or diagnostic use. Our peptides are designed exclusively for controlled laboratory research, educational studies, or analytical testing. Every product label and supporting document clearly reflects this compliance standard.
Who is eligible to purchase peptides?
Scientipeptides products are available to qualified researchers, laboratories, and educational institutions. Purchasers must confirm the products will be used for research purposes only.
How should peptides be handled and stored?
Lyophilized peptides should be stored at -20°C and protected from light and moisture. Once reconstituted, peptides should be used promptly and stored according to the documentation included with each product.
Why do peptide vials appear nearly empty?
Lyophilized (freeze-dried) peptides often appear as a thin film or small pellet at the bottom of the vial. The milligram amount stated on the label is verified by HPLC and mass spectrometry regardless of visual volume.
Other recommended products
Our universally agreed, most-loved products.
