🔍 PeptideVerify
Last updated: March 2026
Don't trust random vendors with your health. This is the free checklist we use to vet a peptide source before recommending it.
See How We Vet →How We Vet a Vendor
Check the COA
Does the vendor publish a recent third-party HPLC/MS certificate of analysis tied to the actual batch — not a generic stock image?
Research reputation
Reviews, community reports, complaint history, and how long the vendor has operated under the same name.
Scan for red flags
Implausible purity claims, no COAs, off-platform-only payments, medical claims, or pressure tactics.
The Free Vendor-Vetting Checklist
Run any peptide source through these before you buy. If a vendor fails several, walk away.
- Batch-specific COA: a recent third-party HPLC (and ideally MS) certificate that names the exact product and lot.
- Identity & purity match: the COA's compound and purity (typically ≥98%) actually match what's advertised.
- Independent lab: testing done by a named third-party lab, not the vendor's own unverifiable "in-house" claim.
- Track record: consistent reputation across reviews and community reports over time, under the same business name.
- Transparent contact & policies: real support channel, refund/repour policy, clear shipping and storage handling.
- No medical claims: legitimate research vendors sell "for research use only" and don't promise to treat disease.
- Sane pricing & payment: prices that aren't implausibly cheap, and standard payment methods (extreme crypto-only/“friends & family” pressure is a flag).
Want a specific vendor checked?
This research is free. Send us the vendor, product, and any batch/COA links and we'll fold our findings into our vendor research. We also publish reputable, COA-backed sources we already trust.
Contact Us → See Vetted Vendors →