About The Peptide Directory
The Peptide Directory is a source-linked peptide directory: research vendors, telehealth programs, clinics, compound guides and calculators, with every fact linked to the public source we checked and the date we checked it.
Our mission
Make the peptide market easier to check. Most peptide directories rate vendors without showing their evidence. We show the evidence and leave out the ratings until we can back them.
Ownership
The Peptide Directory's owners also own and operate research-peptide businesses, including vendors listed in this directory. Those vendors are listed with the same fields and the same checks as every other vendor, and we do not score vendors. The default directory order spreads out vendors with related ownership or shared suppliers, as described in our methodology. The vendor directory's default order starts from published criteria (transparency, then core compounds in stock, then typical price per mg); editors also adjust placement to spread out vendors with related ownership or shared suppliers so no group clusters together, and a strict criteria ranking is one click away (see methodology); other lists are alphabetical or sorted by a published number, and every fact links to the public page it came from.
How we source and verify listings
For every vendor, clinic and provider we read the company's own public pages, record specific facts (does it publish a COA page, which labs it names, what peptides a clinic lists, its address) and keep the URL and the date. Last full check: October 19, 2026. We respect robots.txt, use public pages only and never log in or buy.
We do not score, rate or rank vendors. Scores will only appear after we publish a testing methodology and real results; until then there are no star ratings or Review markup on this site.
The The Peptide Directory Editorial Team
Pages are researched and reviewed by the The Peptide Directory Editorial Team. We name the organization rather than invent individual credentials. Health and regulatory claims cite primary sources: FDA labels and announcements, ClinicalTrials.gov, PubMed-indexed papers and PubChem.
Informational purpose only
Nothing here is medical advice. Doses appear only as printed in FDA labels or published trial designs. Products sold "for research use only" are not for human consumption. See the disclaimer.
Research & data
Our 2026 vendor transparency report publishes the underlying per-vendor data as CSV under CC BY 4.0.
Contact us
See the contact page for corrections and listing questions.