Disclosure: We earn a commission from vendors on this page. Rankings are based on objective criteria including price, COA availability, and reputation.
Best KPV Vendors of 2026
Ranked by Price, Purity, and Reputation
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Quick Comparison
1EZ Peptides
10/10$38.00
10mg$3.80/mgCOA2Ascension Peptides
9.9/10$40.00$79.99
10mg$4.00/mgCOA3Ion Peptide
9/10$49.00
10mg$4.90/mgCOA4BioLongevity Labs
8.9/10$99.97
10mg$10.00/mgCOA5Royal PeptidesShips InternationallyPays with Crypto
8.8/10$55.00
10mg$5.50/mgCOA6Limitless Biotech
8.7/10$48.99
5mg$9.80/mgCOA| Rank | Vendor | Price | Amount | $/mg | COA | Score | |
|---|---|---|---|---|---|---|---|
| 1 | EZ Peptides | $38.00 | 10mg | $3.80/mg | Yes | 10/10 | |
| 2 | Ascension Peptides | $40.00$79.99 | 10mg | $4.00/mg | Yes | 9.9/10 | View50% OFF |
| 3 | Ion Peptide | $49.00 | 10mg | $4.90/mg | Yes | 9/10 | |
| 4 | BioLongevity Labs | $99.97 | 10mg | $10.00/mg | Yes | 8.9/10 | |
| 5 | Royal PeptidesShips InternationallyPays with Crypto | $55.00 | 10mg | $5.50/mg | Yes | 8.8/10 | |
| 6 | Limitless Biotech | $48.99 | 5mg | $9.80/mg | Yes | 8.7/10 |
KPV Stacks & Blends
Pre-mixed combinations containing KPV — one vial, multiple peptides.
BPC-157 + GHK-Cu + TB-500 + KPV
Also contains: BPC-157, GHK-Cu, TB-500
Klow Blend (BPC-157 + GHK-Cu + KPV + TB-500)
Also contains: BPC-157, GHK-Cu, TB-500
Compare More Peptide Vendors
How We Score Vendors
Our scoring is based on three weighted factors:
Price Competitiveness (40%)
Normalized to cost per milligram for fair comparisons across vial sizes.
COA Availability (30%)
Third-party lab testing confirming purity, identity, and absence of contaminants.
Vendor Reputation (30%)
Community feedback, shipping reliability, customer service, and business track record.