All products sold strictly for in vitro laboratory research use only · Not for human or animal administration · Not FDA-approved
Vetting a new research peptide supplier? Answer the checklist below to score any vendor 0–100 on the three things that actually predict quality: third-party testing, COA documentation, and transparency. Free, instant, and nothing is stored.
Research peptides are sold as an unregulated category, so quality between vendors varies enormously — and the 2026 closure of a major national supplier pushed thousands of researchers to vet replacements at once. This scorecard turns that vetting into a repeatable process built on objective, checkable criteria rather than reviews or reputation alone.
Each question is weighted by how strongly it predicts material quality. Testing and batch documentation carry the most weight; operational transparency rounds out the picture. A "yes" earns full weight, a partial answer earns half, and a "no" earns none. The total is normalized to a 0–100 score and bucketed into a verdict. For the underlying methodology, see our guides on reading a peptide COA, evaluating suppliers, and batch traceability.
A low score doesn't always mean a supplier is bad — sometimes the information just isn't public. Use the gaps listed in your result as the exact questions to send them before you buy. A trustworthy vendor answers all of them with documentation, not assurances.
This tool is an educational aid for evaluating supplier documentation and transparency. It does not test physical product and is not a guarantee of any vendor's quality. All research peptides are for in vitro laboratory research use only.