Every vendor in PeptideClear's scored catalog that publicly lists KPV, ranked by their Vendor Transparency Score. VTS measures what a researcher can verify before purchasing - third-party testing practices, COA accessibility, batch traceability, and operational disclosure - from publicly available materials only. It is not a rating of product quality, purity, or safety. If you are sourcing this compound, transparency is the variable within your control.
| Vendor | Band | VTS | Key transparency finding |
|---|---|---|---|
| BioLongevity Labs biolongevitylabs.com | High | 94 | Triple third-party testing per batch by named independent labs, with COAs downloadable before purchase. KPV listed as a 10mg standalone vial and in the KLOW blend. |
| Verified Peptides verifiedpeptides.com | High | 80 | 500+ published batch COAs with HPLC purity and identity data; lot numbers and testing dates publicly accessible. KPV listed as a 10mg standalone vial and in the KLOW and TB/BPC/KPV blends. |
| Ascension Peptides ascensionpeptides.com | Moderate | 76 | Public COA library with named labs; HPLC and MS per batch. KPV listed in the immune and longevity range and in the KLOW blend. |
| Peptide Crafters peptidecrafters.com | Moderate | 76 | Triple-batch analysis with HPLC-MS, endotoxin, and sterility testing; US lyophilization stated. KPV carried as a standalone research compound. |
| Limitless Life Nootropics limitlesslifenootropics.com | Moderate | 68 | COA documentation stated per batch; US-based operations. KPV confirmed as a standalone vial and in the KLOW and GLOW blends including capsule formats. |
| Alpha Omega Peptides alphaomegapeptide.com | Moderate | 64 | GMP-certified US manufacturing; COA documentation stated per batch. KPV confirmed in the KLOW blend at alphaomegapeptide.com. |
| PureRawz purerawz.co | Limited | 59 | Broad catalog with COAs stated per batch; accessibility inconsistent. KPV listed as a standalone and in multiple blends including a KPV + BPC-157 Arg combination. |
| Blue Sky Peptide blueskypeptide.com | Limited | 55 | Established US vendor; COA documentation inconsistent. KPV listed as a standalone 5mg vial and in the KLOW blend per the public sitemap. |
| Apex Peptides apex-peptides.com | Limited | 44 | 60+ compound catalog; COAs available on request. KPV listed in the tissue repair and recovery range. |
| Planet Peptide planetpeptide.com | Low | 26 | Broad catalog; minimal verifiable documentation publicly accessible before purchase. No named testing lab or entity details disclosed at time of scoring. |