The Most Trusted Peptide Vendors

Frequently asked questions

How many peptide vendors have been independently evaluated?

Disclosed Labs has evaluated 71 peptide vendors using independently-submitted Certificates of Analysis (COAs). Scores are computed from purity, safety-panel coverage, lab corroboration, and forgery signals — no vendor pays for their score.

Which peptide vendor has the highest trust score?

As of our last scoring run, Instant Peptides leads the Disclosed Labs trust ranking with a score of 97/100 (Grade A). Rankings update as new lab results are submitted. Full profile at https://www.disclosedlabs.com/vendors/instantpeptides.com.

How are peptide vendor trust scores calculated?

Disclosed Labs trust scores combine four factors: purity (average tested purity across COAs), safety-panel coverage (endotoxin and sterility test rates), lab corroboration (whether multiple independent labs confirm results), and forgery signals (batch reuse, implausible results, unverified labs). The full methodology is published at https://www.disclosedlabs.com/methodology.

Are Disclosed Labs trust scores available for purchase?

No. Disclosed Labs trust scores are never sold, inflated, or manipulated for any vendor. A vendor cannot pay to improve or suppress their score. High scores are earned through independently-submitted, lab-verified COAs — not fees.

Where can I buy research peptides safely?

There is no single 'safest' vendor — confidence comes from independent lab verification, not marketing. Use the trust leaderboard above to compare vendors on real, independently-submitted COAs: purity, safety-panel coverage, lab corroboration, and forgery signals. Vendors with more lab-confirmed COAs and no forgery flags carry stronger evidence. All products are research-use-only; Disclosed Labs does not sell peptides.

How can I tell if a peptide vendor is legit?

Look for independently-verified Certificates of Analysis rather than vendor self-claims. The score above grades each vendor on real lab COAs and whether multiple independent labs corroborate their results — a vendor with many lab-confirmed COAs and no forgery flags is more credible than one with none. Open any vendor's report to see the underlying evidence.