Why this site exists

The research-peptide market is largely unregulated. Two vials with the same label can have wildly different purity, contamination, or even contain the wrong compound entirely. Most buyers have no way to verify what's actually inside.

Peptide Guardians fixes the visibility problem. We anonymously purchase samples from vendors, send them to accredited third-party labs, and publish every result — pass or fail. No paid placements, no advertising, no vendor relationships.

What we publish

• The COA report from the HPLC testing, exactly as it came back from the lab.
• The full lab report PDF, hosted here permanently.
• The grade letter (A–F) and the date the sample was tested.

What we don't do

• Accept vendor-supplied samples.
• Take payment from vendors to influence grades.
• Give medical advice. Everything on this site is for research use only.

Read the full testing methodology.