Klow
50mg GHK-Cu + 10mg TB 500 + 10mg BPC 157 + 10mg KPV — research use only.
Overview
Klow (50mg GHK-Cu + 10mg TB 500 + 10mg BPC 157 + 10mg KPV) 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 #: 137525-51-0 & 77591-33-4 & 67727-97-3 & 49557-75-7 · Formula: C212H350N56078S & C14H23CuN604 & C68H98N16022 & C16H30N404 · Molecular Weight: 1419.53, 4963.44, 341.40, 340.38 g/mol · Purity: 99% HPLC
Potential research application
RESEARCH USE ONLY – REVIEW STUDIES: The Klow Blend is a landmark advancement in peptide science, engineered to explore the convergence of four distinct biochemical signaling pathways. By combining the angiogenic properties of BPC-157, the actin-regulating capabilities of TB-500, the anti-inflammatory modulation of KPV, and the remodeling influence of GHK-Cu, this blend provides a comprehensive model for systemic recovery.
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 #
- 137525-51-0 & 77591-33-4 & 67727-97-3 & 49557-75-7
- Formula
- C212H350N56078S & C14H23CuN604 & C68H98N16022 & C16H30N404
- Molecular Weight
- 1419.53, 4963.44, 341.40, 340.38 g/mol
- Purity
- 99% HPLC
300 reviews for Klow
Independent third-party lab testing was available for the lot and the report was easy to pull alongside the vendor COA. Having that extra layer of verification made it simple to sign off on receipt and slot the material into our qualified inventory without extra back-and-forth.
Seals intact, in-house HPLC matched COA.
Absolutely perfect!
Perfect Klow, thanks.
Perfect exactly as described…
the COA lot number matched the vial label exactly which is the kind of detail our lab tracks closely. No discrepancies on the paperwork at all. Exactly what we want from a supplier.
Klow lyophilised cake intact no clumping, cold-chain packaging still cold on arrival…
International shipment rec'd w/ intact cold-chain packaging and customs docs in order. I had a technical question about lot documentation and got a clear answer same day which saved us a rework on the prep sheet.
We have been sourcing peptides through Scientipeptides for a few months now and the tracking updates during transit were accurate every single time. No guessing where a shipment was or when it would land, which makes scheduling prep work much easier. That level of visibility is something our old supplier never got right. I have already pointed a couple of colleagues here for their own lab orders. Logistics this reliable is worth sticking with.
Klow rec'd in plain unbranded outer packaging
The COA included an LC-MS trace and the major peaks lined up with the stated sequence without unexplained contaminants. We cross-checked the molecular weight assignment against our in-house library and the match was clean. HPLC purity was reported clearly and the batch number tied back to the vial label. Documentation was complete enough to file with our receivving log without extra paperwork. This is the standard we want for reference material on the bench.
Klow showed up exactly how we needed it no complaints at all
Klow COA had the molecular weight and sequence listed clearly which saved us a verification step but the invoice formatting was very basic and we would reorder anyway since the material and docs were solid.
Klow came w/ third-party testing docs available and support answered our spec questions same day, very helpfull for getting it into our SOPs.
Perfect Klow, rec'd!!
Net peptide vs gross mass clearly stated.
Klow here fast, reconstitution notes included.
Institutional PO for Klow processed cleanly w/ procurement.. no chasing required.
Very good.
Klow vial seals were solid, one cap a little stiff though!!
We switched to Scientipeptides for Klow after inconsistent fills elsewhere and each vial has matched the stated mass on the label. Cold-chain packaging arrived still cold with gel packs intact and the peptide looked clean on intake. Restocks of this harder-to-source compound have been reliable on our last three orders and we have not had to pause bench work waiting on backorder notices.
Ordered Klow for a method validation run and it showed up faster than I expected. Packaging was intact and everything was ready to go straight into the freezer. Really happy with how smooth the whole process was.
Tamper-evident seals were intact and the order arrived complete with nothing missing. They also stock less common research peptides we cant find elsewhere and the shipment was well packed.
glass vials look high quality and the site specs matched what showed up in the box!!
We order Klow regularly and the HPLC traces have been clean every time with no unexpected side peaks. Lot documentation is always complete and easy to file for our records. Packaging has been consistent and cold-chain handling looks solid on arrival. It slots cleanly into our standard bench workflow without surprises.. would not switch suppliers at this point…
Klow went into solution with no cloudiness on reconstitution and the lot paperwork lined up fine.. support took about a day to reply but they were helpful once they did…
The cold-chain packaging arrived still cold and the gel packs were intact when we opened the box. Everything looked properly handled for lab storage.
Klow from Scientipeptides has been a solid addition to our peptide prep line. The reconstitution guidance was included and the labels stayed legible even after sitting in the cold room and I already sent two colleagues the link.
Klow restocks have stayed reliable even when this compound is hard to source elsewhere and we have been able to keep our queue moving without gaps when support took about a day to reply on a tracking note but the material itself has been solid every time and we will keep ordering!!
Gel packs in the insulated box kept temp stable through delivery.
Our Klow order showed up in a plain unbranded outer box that kept things low-key through receiving. Inside, the vials were packed securely and each one weighed out to the stated fill on the label. We file COAs with every lot and the numbers have lined up cleanly so far. For a compound we reorder regularly, that kind of consistency is reassuring.
I've ordered Klow from Scientipeptides several times now and restocks have been reliable even when other vendors were out. The outer box arrived plain and unbranded, which our receiving desk appreciates. Material has been consistent across orders and the documentation has stayed aligned with the labels. There was a bit more packaging than the order really needed, but everything arrived secure and I'd happily keep reordering from them.
Klow: low TFA, padded well, support slow.
Independent third-party lab testing was available on request and the documentation lined up cleanly with what we needed for our internal filing.. no gaps in the traceability chain at all.
Klow vials hit the labeled fill mass and the COA included stability and shelf-life data we could file with our lot records.
Klow.. prefect.
Clear itemized invoicing for procurement, COA included in the shipment, site specs matched what arrived. Paperwork and lot tracking were tight with no surprises.
Exactly as described.
Klow had stability data in the packet lyophilised cake intact no clumping and seals looked good.
Klow perfect thanks.
They included clear reconstitution guidance with the shipment, which saved us from digging through old SOP notes. The instructions were practical and aligned with how we handle similar lyophilized peptides in the lab. Really appreciate that level of detail.
Padding kept Klow secure in transit with nothing shifted around.. bulk pricing worked for our larger study qty. One vial cap was a little stiff to break but the material itself was exactly what we needed.
Good Klow reorder invoice was basic tho.
Klow arrived with labels that stayed legible even after cold storage and a few wipe-downs. Font and lot info were easy to read under bench lighting. Small detail but it matters when you are handling multiple vials in one session.
Klow international shipping was handled smoothly though restock timing on this one can run a little slow and we are still happy with the order overall.
klow rec'd w/ desiccant intact shipping issue sorted quick
Clean blanks, no issues.
Excellent Klow, thanks!
We switched to Scientipeptides for Klow after flaky crimps from our previous vendor. The vial crimp and stopper seal on this order were solid and the material inside looked clean and intact. Glad we made the change.
Reordering was quick and accurate on our last two runs and the net peptide content versus gross mass was stated clearly on the label and COA so there was no guesswork at the bench. Shipment tracking updated promptly, nothing was backordered or substituted without notice, and the vials matched the quantities on the packing slip which is the kind of boring reliability you want from a regular supplier and we have kept this on our standing order list because of it.
Slow ship.. would rec'd again.
Very impressed, thanks!
We've been running peptide work for a while and the residual solvent numbers on recent lots have been exactly what we want to see on paper. Shipments show up when they say they will, documentation is consistent, and bench results have been steady run after run. For a supplier we depend on weekly, that kind of reliability matters more than flashy marketing. Already recommending them around the lab.
Procurement was smooth because the invoicing came through clear and itemized.. Independent third-party lab testing documentation was available when we requested it, which helped our internal review process. They also carry less common research peptides that other vendors did not stock. Everything lined up cleanly on the paperwork side. We are already planning the next order.
Klow gr8 restock slow tho
prefect glad we swiched.
Padding was secure and nothing shifted during transit.
Bench assays have been steady batch to batch which is what we care about and restock timing on this one can run slow sometimes but when it arrives everything checks out.
We switched our Klow sourcing here after inconsistent documentation elsewhere. The COA listed the full sequence and molecular weight clearly, and both matched what we expected from the literature.. Lot traceability on the vial label was equally clean. Reconstitution in the lab was straightforward and the material handled predictably on the bench. This is the level of detail we need for our records.
Excellent quality.
Klow w/ COA.. perfect!
klow's in-house hplc matched the stated purity on the COA and scientipeptides catalogue breadth keeps our research program stocked w/out hunting new vendors.
We rec'd Klow along with a couple of other peptides and the catalogue breadth here covers most of what our research program needs. No more bouncing between suppliers for less common lots. Solid selection and clean documentation.
Net peptide content vs gross mass was stated clearly on the lable.. no guesswork on qty.
klow showed up fast in discreet unbranded outer packaging and we're glad we moved suppliers. support took about a day on a shipping question but we'd order again.
Insulated packaging with gel packs kept temp stable through transit and they carry less common research peptides we could not source locally. Checkout on the site was a little clunky but the order arrived as expected and we would reorder.
Klow is our go-to ref standard for method dev we reorder it constantly
Shipment arrived in plain unbranded outer packaging, which is exactly what we want for lab deliveries. Everything inside was packed normally and looked fine on receipt.
Clean chromatogram, third-party testing available.
Our Klow shipment showed up with a crushed corner on the outer box and we emailed same day.. Support res'd it fast and the replacement arrived w/ gel packs still cold. Vials and COA paperwork were intact on the reship. For a supplier that actually fixes transit issues without dragging it out, this was a easy switch from our old vendor.
COA in box, great catalogue breadth.
Klow LC-MS identity matched the sequence perfectly glad we switched.
Klow reported low residual TFA on the COA and reconstituted clean with no cloudiness in bacteriostatic water. The desiccant pack shifted around a little inside the box but the vial itself was fine. Would reorder for the documentation alone… honestly a good value for what we got!!
Klow endotoxin figures on the COA.. padding secure, nothing shifted!!
Klow: consistent across reorders, net vs gross peptide clear on label, PO checkout straightforward.
klow COA listed endotoxin and sterility figures clearly, exactly what procurement needed…
Very good.
Klow restocks have been reliable when we needed more for ongoing work and multi-vial orders were handled without issues. Desiccant pack shifted a little in one shipment but everything inside was intact. Still very satisfied overall.
Klow tamper-evident seals were intact on every vial in the shipment and overall reliability from this supplier has been steady across reorders which is exactly what we need for recurring lab work…
Klow arrived desiccant intact inside
Great Klow.. one cap stiff tho.
Reordering was quick and accurate, same product and quantity showed up without any back and forth.
We had a shipping hiccup on one order and support resolved it smoothly without a lot of back and forth.. When procurement needed a specific lot COA they tracked it down quickly. LC-MS identity confirmation lined up with the expected sequence on our end. Material has performed consistently in bench work across the last few orders. Already reccomended them to another group in our building.
Klow fill mass per vial was right on target when we weighed it against the label claim. The vials were consistent and handled well during reconstitution. Invoice formatting was very basic but the product side was excellent and we are already planning another order…
Clean reconstitution, glad we switched suppliers.
Klow complete, COA in box.
Klow worked well as a reference standard for method development with clean blanks and no carryover into runs, and the batch documentation was thorough and easy to file.
Reliable lab supplier, glad we switched.
COA lot number matched the vial label exactly, which is the kind of paperwork detail that keeps our records straight…
Klow COA documented endotoxin and sterility figures clearly, insulated packaging with gel packs held temp in transit, and support helped us pull a specific lot COA quickly. The desiccant pack shifted around a little inside the box but the vial and certificate were fine and we would order again.
Klow included clear reconstitution guidance with the shipment so our team did not have to dig through old SOP notes. The steps were straightforward for bench prep and we had a uniform solution on the first attempt.
Support helped us track down a specific lot COA within one email exchange and the file matched our vial label exactly!!
Outstanding Klow!
Bulk pricing on Klow worked for our larger study, support pulled the lot COA same day, and our in-house analytical check matched the stated purity.
Perfect thanks we reorder
Klow full stated qty minimal loss…
Tamper-evident seals were intact on every vial in the shipment. Cold-chain packaging arrived still cold with gel packs frozen solid. It is also helpful that less common research peptides like this are actually available here instead of long lead times. Labeling and lot info were aligned with what we need for lab records.
Klow has been an excellent reference standard for our method developement work so far.
Klow batch docs thorough, easy to file.
Klow from Scientipeptides keeps landing with clear storage and handling instructions so nothing gets mishandled on intake and we have reordered twice without any labeling surprises which is exactly what we want from a regular supplier.
Klow perfct.. thanks!
Klow fill on point.
Residual TFA and solvent levels on the COA were reported clearly and sat well within the thresholds we track for prep and downstream handling. The figures lined up with our internal checks on receipt and we had no issues filing the lot into our inventory system the traceability was clean from box to bench…
PO went through clean, no hassle.
Klow perfct, thanks.
Solid crimp/stopper seals, dissolved clean in bac water, and the glass vials feel high quality with no chips or weak spots.
Klow shipped with third-party lab testing available on request, and the insulated packaging with gel packs was still cold at delivery. Exactly what we expect for research material.
The product specifications listed on the site matched what arrived in the vial, including sequence details and purity targets. Cross-referencing against our internal records was straightforward. One vial cap was a little stiff to break, but everything else met expectations and we would reorder.
stopper seal looked tight, documentation questions answered fast
Klow LC-MS matched sequence, padding held firm.
The catalogue breadth covers most of what our research program needs in one place.. we can line up related peptides without bouncing between suppliers and that saves a lot of time on procurement.
Stability and shelf-life data on the documentation sheet was detailed enough to set storage parameters without guessing.
Insulated packaging and gel packs showed up still cold.. Storage and handling instructions were clear enough that our newer tech prepped everything without looping me in, which is rare.
Klow has worked well for us as a reference standard during method development. It went into bacteriostatic water cleanly with excellent solubility and no particulate hanging around. Behavior across instrument setups has been predictable and easy to document. Really reassured by how straightforward prep has been from vial to run.
our latest order dissolved clean on reconstitution with no cloudiness at all. The insulated packaging with gel packs held temperature through transit and our institutional PO processed without the usual procurement headaches. Labels and COA were in the box and matched what we requested. We've already queued the next reorder…
Had a few technical questions about the Klow documenation before our first prep and support replied same day with clear answers. That kind of speed cuts down a lot of back-and-forth at the bench. We will definitely be ordering again.
The COA lot number on Klow matched the vial label exactly which is the first thing we check on intake. HPLC and MS data on the certificate were legible and easy to archive. Seals were intact and the vial sat cleanly in our rack without any glass defects. We have reordered twice since and seen the same level of documentation consistency each time.
Solid Klow.. restock runs slow.
LC-MS identity lined up with the published sequence on our last pull. Restocks of this harder-to-source compound have been reliable w/ no long gaps. Exactly what we need from a supplier.
klow gave us clean blanks with no contamination carried into runs and it is great having a supplier that stocks less common research peptides when support took about a day to reply on a simple invoice question but we are still satisfied and will reorder.
Klow plus their full peptide catalogue, perfect.
Shipment rec'd w/ gel packs still cold and the lyophilised cake was intact with no clumping when we opened it, so it went straight into storage and I am not worried about the transit temp at all.
Reordering was quick and the second shipment matched the first exactly. Catalogue covers the peptides we run regularly without hunting elsewhere. No issues.
Klow has been consistent across our bench assays and the net peptide content vs gross mass was stated clearly on the label. Tamper-evident seals were intact on every vial w/ no handling issues. One cap was a little stiff to break but we are still very satisfied and would order again…
labels were legible and durable through handling and cold storage. We saw clean blanks with no contamination carried into runs and consistent performance across bench assays lot after lot. Solid supplier for routine ordering.
Ran our own analytical check and purity looked right.. chromatogram was clean with no unexpected side peaks through the full run.
labels on the Klow vials stayed legible and durable even after weeks in the cold rack. Our institutional PO order went through without extra back-and-forth and stability shelf-life data was included in the documentation. HPLC trace on arrival looked clean and lot details matched what we expected. Overall a reassuring experience from receipt through filing.
Glad we switched.
Tracking updates stayed accurate the whole way and everything showed up right when the portal said it would.
Klow showed up with the lyophilised cake fully intact and no clumping in the vial. It reconstituted cleanly for our bench prep and I've already pointed a couple colleagues here. Outer packaging was a little more than we needed for the qty, but the product itself was exactly what we wanted.
Excellent Klow.
klow vials hit the stated fill every time.. very happy we switched.
International shipping was handled smoothly and customs docs were clean. Our in-house HPLC matched the stated purity on the COA…
COA in the box padding secure nothing shifted in transit and labels matched the lot on the paperwork.
Klow runs consistent across bench assays
coa came w/ the shipment and reordering was quick and accurate, checkout on the site was a little clunky but we're satisfied overall.
Great to see less common research peptides actually in stock, though the label print was slightly faint on one vial, still happy with the order overall.
Klow cake intact low TFA on COA tough glass vial
klow showed up w/ the COA in the shipment and ive already reccomended it to two colleagues on the team.
Perfect, thanks!
Great value tough glass vials fast ship
Solid Klow!!
We switched to Scientipeptides for Klow and the shipping care is a noticeable step up.. The padding was secure and nothing shifted in transit even though transit took a few days every vial stayed put and the cold packs were still cold which matters for lyophilized material. Really glad we made the change.
Klow COA listed low residual TFA/solvent, gel packs in insulated packaging held temp through delivery.
Rec'd w/ tight padding, dissolved clean in bac water.
klow has been a regular reorder for us. Solubility in bacteriostatic water has been excellent every time with no particulate or residue. We use it across multiple prep steps and the results stay consistent lot to lot. Documentation and labeling have been clear on each shipment. Easy to keep on the standing list.
We placed a bulk Klow order for a larger study and Scientipeptides handled the multi-vial shipment well. Each vial was individually labeled, desiccant was intact, and the batch COA covered everything we needed for our files. Bulk pricing made sense for the qty we needed without cutting corners on documentation. Gel packs in the insulated packaging kept temp stable through transit. Would use them again for scale-up orders.
Dissolved clean in bacteriostatic water with no particulate, international shipping cleared customs without delays or repackaging drama, and the glass vials all looked uniform with clean crimps and no micro-fractures under bench inspection.
Klow has been consistent in our bench assays and the fill mass per vial matched the label every time we weighed it.
klow arrived with a bit more packaging than the order really needed and checkout on the site was a little clunky. their team still answered our documentation questions fast though and the vial looked fine on receipt…
Vial crimp and stopper seal were solid on arrival. Nothing loose or compromised in the box. Good enough that I didn't hesitate to store it right away.
Klow multi-vial order was handled well and landed fast for our prep schedule.
Klow solubility in bac water excellent, good value, desiccant shifted.
Klow, perfect.
All good.
Reliable restocks, multi-vial qty handled great.
The desiccant in our Klow vial was still intact when we opened it which is a small detail but it matters for storage. Packaging was clearly thought through. Will order agian!!
klow is solid.. perfect.
Reconstituted clear with no cloudiness, exactly what we needed for the run.
We order Klow regularly for our peptide work and the consistency has been worth it. On the latest lot we ran LC-MS identity confirmation and the results lined up cleanly with the stated sequence. Documentation with the shipment was straightforward and the vial arrived in good condition. It has become a dependable part of our bench setup. No reason to look elsewhere at this point.
Very discreet.. perfect.
Really appreciate getting Klow here with gel packs that were still cold when we opened the box. That kind of packaging care makes a difference for our lab work and we will keep ordering from you.
Klow arrived in discreet unbranded outer packaging w/ nothing on the box that flags a peptides shipment, which made receiving straightforward.
Seals intact, extra packaging though
Ordered Klow with a couple less common peptides we could not source elsewhere. Padding was secure and nothing shifted in transit. Fill matched the stated quantity with minimal loss on prep. Labels were clear and the vials arrived intact. This stays on our standing order list.
We've been ordering Klow from Scientipeptides for a few months now and overall reliability has been excellent. Vials arrive labeled clearly, COAs are consistent, and reconstitution has been clean every time. Procurement also appreciated the itemized invoicing on our last PO, made internal approval straightforward. I've already pointed two colleagues here for their peptide needs. For a supplier we depend on weekly, that kind of consistency matters.
Klow batch docs were easy to file, bulk pricing worked for our larger study and cold-chain packaging arrived still cold. A bit more outer packaging than the order really needed but everything inside was fine and we'll keep using them.
Fill weight matched the label exactly.
support helped us track down a specific lot COA quickly when our records were missing a sheet and bulk multi-vial orders have been handled without mix-ups or labeling errors. we run clean blanks with no contamination carried into subsequent assays and everything files neatly for audit.
third-party testing docs available.. good to have.
We've been reordering Klow from Scientipeptides for a while and their support team has been responsive and knowledgeable whenever we had documentation questions. One vial cap was a little stiff to break but everything else arrived as expected and we'll keep using them for our lab work.
Very good glad we switched
Tracking updates were accurate in transit restock timing on this one can run slow but I'd order again.
Klow support answered our technical documentation questions fast, the material ran clean with no contamination carried into blanks.. restock timing on this one can run a little slow but we are still satisfied with the lot we received.
Klow intl shipping smooth customs docs complete no issues at all
Great Klow, minor checkout friction.
Klow arrived cold, gel packs still frozen
Klow solid for method dev, stiff cap once though.
Klow tracking was accurate, fill looked full w/ minimal loss, label print was slightly faint but we would reorder.
Klow LC-MS lined up w/ sequence order arrived complete gel packs held temp fine invoice formatting was pretty basic and tracking updates were sparse in transit but we'd reorder…
klow: clean chromatogram, hard-to-find peptide nailed
Perfect, thanks!
We've placed a few reorders now and each lot has lined up the same on our in-house comparisons. That batch-to-batch consistency makes it easy to trust the material when we're setting up new runs…
Perfect.. thanks!
Ran in-house HPLC against the COA and the stated purity matched cleanly, plus the outer shipper was plain/unbranded which our receiving desk likes…
Klow restocks have been reliable even when this compound is hard to source elsewhere. Latest shipment matched prior lots and the documentaiton was clear…
Cold-chain packaging was still cold when it landed and the product specs on the site matched the vial labels exactly so there was no back-and-forth before we logged it into inventory.
Switched suppliers this Klow is perfect
Klow traking spot on chromatogram clean no side peaks
Material met specification on arrival and stored well at the recommended temperature. No degradation observed over our study window.
HPLC came back clean with no unexpected side peaks, which is what we want before we commit a lot to a longer run. Documentation was straightforward to pull and matched the vial labeling. Will keep this on our approved vendor list!!
Quick reorder, thanks!
Chromatogram came back clean with no unexpected side peaks and blanks stayed clean with no carryover. Support also pulled the lot COA we needed without a runaround.
Vial crimp and stopper seal were solld on arrival with no issues breaking the cap.
Strong price/value for a tight research budget and they had independent third-party lab testing available w/ the lot docs which made internal sign-off quicker than usual.
desiccant intact labels readable, support took a day but all good!!
Documentation matched perfectly.
Bulk pricing made sense for our larger study and everything shipped as quoted.
Klow shipment had full stated qty in each vial, a minor shipping hiccup was resolved fast, and our institutional PO went through without extra back-and-forth.
Klow third-party lab data availble.
Ordered multiple vials of Klow and everything arrived in discreet unbranded outer packaging. Bulk qty was packed cleanly with no mix-ups between lots. Procurement side was straightforward.
I've rec'd Klow twice now and the labels have stayed legible even after sitting in the cold room. That sounds small but it saves time when you're pulling vials for multiple runs in a week.
Dissolved clean in bac water, third-party data on file. Delivery ran a few days past the estimate.
Klow batch documentation was thorough and easy to file, and third-party lab testing was available on request. The reconstitution notes were pretty minimal and one vial cap was a little stiff to break, but the material itself has been fine and I'd reorder.
much more reliable than our old source…
Klow arrived with desiccant included and intact, checkout on the site was a little clunky but the order itself was worth it.
net peptide content versus gross mass was stated clearly on the COA, overall reliability as a lab supplier has been solid, and the lot has been suitable as a reference standard for method development so far.
Site specs were accurate, support helped locate the lot COA fast, desiccant intact in the box. Solid supplier all around.
Reconstituted in bacteriostatic water and it cleared fast with no particulate hanging around. Vial and seals were fine and I would reorder since the prep step never gave us friction in the workflow.
Received the order ahead of schedule with full documentation. The material integrated smoothly into our existing protocol.
Klow lists low residual TFA and we rec'd material that matched the documented specs for our bench work.
Klow arrived with the desiccant pack included and fully intact which matters for us in a humid lab. The vial itself looked clean and the labeling matched the lot info on the COA.. exactly what I wanted to see before putting it on the bench.
PO ordering for Klow was straightforward and the shipment arrived on schedule. Desiccant pack had shifted a bit inside the box but the vial was fine. Would order again.
The Klow COA documented endotoxin and sterility figures clearly and everything lined up with what we needed for our lab filing, so we felt comfortable logging the lot right away and moving straight into prep…
Storage and handling instructions in the box were clear and easy to follow for our intake log. The material arrived properly labeled and ready for the cold room. Tracking updates were sparse in transit so we had to check manually once, but delivery was on time and the lot matched our PO. Would reorder for the next protocol run.
We switched vendors for Klow after inconsistent solubility elsewhere and this lot dissolved in bacteriostatic water right away with no particulate. Labels on every vial were sharp and held up through freezer handling and repeated gloved reads. Crimp and stopper seals looked uniform across the box. For bench prep it has been boring in the best way. Glad we moved our peptide sourcing here.
Klow shipped with stability and shelf-life data that was actually useful for our storage SOPs.. We filed it with the lot notes right away and everything has looked consistent since it hit the minus eighty…
Lyophilised cake intact, no clumping.
Net peptide content versus gross mass was stated clearly on the label, which saves time during inventory and bench prep.
Klow showed up w/ intact tamper-evident seals and each vial matched the stated fill on the label.
Klow solid, checkout kinda clunky.
Hard to find less common research peptides in stock but Klow showed up available and shipped out without the usual backorder runaround which saved our project timeline.
very good.
Ordered Klow in bulk for a multi-site study and quality was uniform across the shipment. Coordinating the delivery was hassle-free.
Solid ref standard, COA in box..
Solid. Notes were minimal.
Klow batch to batch has stayed consistent on reorders
klow storage notes clear clean chromatogram no side peaks
Good Klow overall label print was a bit faint but still readable…
International order rec'd on schedule w/ clean customs paperwork and solid packaging.
The residual TFA and solvent levels on the report were low and clearly stated. That kind of documentation gives us confidence before we move into prep work. Really impressed with the transparency.
Klow rec'd w/ desiccant intact, crimp seal solid.
Every Klow reorder has arrived complete with nothing missing from the line item count and the COA was tucked in with the shipment like it should be. Packaging was intact and we had the full qty we ordered without having to chase support for a partial or a mis-pick which matters when you are trying to keep a project on schedule.
Our group has been running Klow through standard prep and QC steps for a while and it has been a smooth experience. Tamper-evident seals were intact on every vial, which is non-negotiable for us in the lab. Documentation was clear and shipments have arrived organized and professional. I've already pointed a couple of colleagues toward Scientipeptides for similar work. When seals and paperwork are this consistent, it is easy to recommend.
Storage and handling instructions were clear, our in-house HPLC matched the stated purity on the COA, and the discreet unbranded outer packaging was perfect for lab receipt.
Klow LC-MS matched bulk fine recon notes thin still reordering
Solubility and stability were in line with the specification sheet. No cloudiness on reconstitution, and results in our binding assays were reproducible.
Klow has worked well as a reference standard while we tune our LC method and the consistency across pulls has been steady. Tracking updates were a little sparse in transit, but everything arrived on time and I would use it again for calibration work.
Scientipeptides keeps harder-to-source research peptides available when most catalogs only list the usual staples. I verified stock before ordering and the listing matched what showed up on the bench. Access to less common compounds without a long backorder saves our group a lot of scheduling headaches.
Klow COA shows low residual TFA. Worth the switch.
Perfect Klow rec'd thanks
Reconstitution guidance was included and the acurate product specs on the site matched the vial.. clean handoff to the bench.
We switched our Klow source to Scientipeptides after inconsistent fills elsewhere and haven't looked back. It dissolves cleanly in bacteriostatic water with no particulate and every vial has had intact tamper-evident seals. Across three reorders the lots have behaved the same in our prep workflow. Documentation was straightforward and delivery was faster than our old vendor. For a compound we run regularly that kind of batch-to-batch consistency matters.
Bulk pricing on Klow worked for a larger study and the qty break actually made sense for our grant line item. Vials arrived labeled consistently and the included COA matched what we pulled from the portal. Reconstitution in bac water was straightforward across the lot. We are already lining up the next PO for the follow-on arm…
glad we switched… perfect klow.
Klow is great..
Bulk Klow multi-vial order handled well, dissolves clean in bac water, no prep issues.
We switched to Scientipeptides for Klow after inconsistent specs from our old vendor. Tracking updates were accurate the whole way and nothing sat in limbo. The product specs on the site matched the vial label and COA exactly. Packaging was professional and the order was easy to reconcile in our inventory. Glad we made the move.
Reorder was quick and we rec'd exactly what we ordered.. padding kept everything secure in transit. Delivery ran a little past the estimate but we'd order again.
We have ordered Klow from Scientipeptides several times now and the fill has matched the stated quantity every batch with minimal loss when we prep.. Labels stay consistent, shipping is predictable, and our group trusts it for routine bench work so it stays on the reorder list without vendor debates, which says a lot in a lab that argues about everything.
The COA lot number on Klow matched the vial label exactly and I filed both in our binder without any discrepancy between the two documents.
Our in-house check on Klow matched the purity stated on the COA and the material behaved predictably through prep.
COA had molecular weight and sequence listed clearly and reconstitution went clean with no cloudiness every vial so far. We keep reordering from Scientipeptides because the lot-to-lot handling has been consistent and the paperwork saves us time in the lab.
Great communication from the technical team when we asked for additional analytical data. They sent the full HPLC chromatogram promptly.
Klow labels are clean and durable but restock timing on this one can run slow, still satisfied overall.
Order arrived complete w/ nothing missing and the chromatogram was clean, no unexpected side peaks.
COA listed MW & sequence, PO went through clean, and support pulled the lot COA same day when we asked.
Very good.
Klow arrived in high-quality glass vials with clean threading and no chips or stress marks along the neck. The crimp caps seated evenly and the septa felt firm without being over-compressed. We inspected each vial under bench lighting before storage and every one looked uniform. For a peptide we handle regularly that kind of packaging consistency saves time and reduces handling errors in the lab.
Perfect Klow rec'd thanks!
Klow labeling spelled out net peptide content vs gross mass clearly so we did not have to guess fill weights w/ our prep notes. Nice to see that stated upfront on the vial.
Klow: tough glass vials, in-house HPLC matched COA.
klow is perfect.. thanks
We moved over from another vendor because sourcing less common research peptides kept turning into a waiting game and Scientipeptides actually had stock when we needed it. Lead times were reasonable, the COA matched what we expected, and reordering has been straightforward since the first shipment landed and we have not had to scramble for alternates on hard-to-find SKUs anymore!!
We needed a specific lot COA for Klow to close out a study file and support tracked it down without a lot of back and forth. They pointed us to the right document quickly and it matched the vial label exactly. That kind of responsiveness matters when you're under a deadline. I've already mentioned them to two people on our team. For a peptide supplier, having that level of follow-through on documentation is a big deal.
Klow, highly recommend.
Fair price, lot COA pulled fast despite desiccant shift
Batch-to-batch consistency has been excellent across three separate orders for the group. Mass spec confirmed identity every time.
Klow net peptide vs gross mass was clear on the label, bulk pricing worked for our study qty, and they keep harder peptides in stock w/ fast turnaround.
Had a minor shipping hiccup on our Klow order and support resolved it smoothly without a lot of back and forth. Vials showed accurate fill on the balance and matched the stated mass per vial on the label.
The product specs on the site were accurate and matched what we received for method development work. This lot has been a reliable reference standard in our workflow and I would not hesitate to reorder.
Klow cold-chain packaging arrived still cold and our reorders have been consistent lot to lot.. Already sent a couple of people on the team this link.
Bulk multi-vial order handled well
Much better Klow, thanks!
Had a minor shipping issue on Klow and Scientipeptides sorted it out quickly with clear communication.
Low residual TFA/solvent on the docs, support tracked our lot COA fast, and overall this shop has been a steady reliable source for our peptide work.
Klow desiccant intact purity held on our check
Klow came with low residual TFA and solvent levels noted on the COA, and the bulk pricing made sense for a larger study we had lined up. Tracking updates were sparse in transit, but delivery was fine and we'd order again!!
Klow tamper seals all intact
Really appreciate how Klow held up when we ran our own analytical check, purity came back right where we expected for the lot.
The desiccant packet was included and still sealed dry when the vial arrived, which is the first thing I check before anything hits our cold storage.. Packaging felt deliberate overall and the material looked clean with no obvious handling issues, and I appreciate vendors that do not skip those small details.
Excellent Klow, thanks!
Sealed, desiccated, and shipped cold. Everything about the handling suggests a supplier that understands laboratory requirements.
Klow labels legible, LC-MS matched sequence!! already telling colleagues…
Thorough batch docs.
Excellent Klow!!
Switched our Klow bulk order here and the qty discount actully worked for our larger study w/ full stated fill in every vial. Wish we had moved sooner.
Klow came with clear itemized invoicing that procurement could approve without back-and-forth. Stability and shelf-life data were in the packet too, which saved us a separate email. Vial and docs matched the lot number on the label.
Really appreciate that independent third-party lab testing was available when we asked. It made it easy to cross-check results against the in-house COA before we logged the material. Exactly the kind of documentation support that keeps procurement happy.
Klow fill weight matched what was listed and the vial crimp looked solid.. Support helped us track down the lot COA quickly when procurement asked for it.
We moved our Klow orders here after inconsistent labeling at our old supplier and it was the right call. Labels are legible, survive cold storage, and still scan cleanly months later. Packaging has been solid every time and nothing arrived crushed or poorly sealed. Invoice line items matched what showed up in the box. Glad we made the switch.
grate value.
klow COA had MW/seq listed.. desiccant shifted in transit but vial fine!!
We prepped Klow and the yield matched the stated quantity on the label with almost no loss. That kind of fill accuracy keeps our bench work from turning into constant recalibration.
Ran our own LC check and purity lined up with the COA. Insulated ship w/ gel packs held temp through delivery. Catalogue breadth is solid for our peptide program too.
We moved a larger study order here after inconsistent COAs elsewhere and the bulk pricing actually made sense for our qty. In-house HPLC matched the stated purity on the COA and the chromatogram was clean with no unexpected side peaks. Material handled normally through reconstitution and prep with no odd behavior on the bench. Packaging held up in transit too. Glad we made the switch!!
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.
Third order of Klow and the response in our functional assays has been consistent each time. Packaging is lab-appropriate.
The quality control data provided with the shipment saved us time. Our internal QC confirmed the stated purity within tolerance.
Their QC paperwork is meticulous. Every vial we have received matched the certificate, which matters for our documentation.
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Peptides validated with documented Certificate of analysis® for all products. See all COAs.
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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.
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