Vendor directory
15 active vendors and 3 closed brands. Checks are filled only from verified sources; a dash means we couldn't confirm it either way.
Checked Oct 21, 2026Sorted by score instead →
| Vendor | Score | Public COAs | Lot-matched | Mass spec | Independent tests | FDA / regulator |
|---|---|---|---|---|---|---|
| 99 Purity Peptides99puritypeptides.com | 60 | Yes | No | Yes | none on file | None found |
| Ascension Peptidesascensionpeptides.com | 70 | Yes | Yes | Yes | none on file | None found |
| Atomik Labzatomiklabz.com | 50 | Unknown | Unknown | Unknown | 80% pass · n=44 | None found |
| Biotech Peptidesbiotechpeptides.com | 70 | Yes | Yes | Yes | none on file | Alert, link unconfirmed |
| Core Peptidescorepeptides.com | 83 | Yes | Yes | No | 71% pass · n=7 | None found |
| Core Research Peptidescoreresearchpeptides.com | 60 | Yes | No | Yes | none on file | None found |
| DRYPtidesdryptides.com | 65 | Yes | No | Yes | none on file | None found |
| Limitless Life (Limitless Biotech)limitlesslifenootropics.com | Not ranked: catalog is behind a login | Yes | Yes | No | 32% pass · n=22 | None found |
| Modern Aminosmodernaminos.com | Not ranked: catalog is behind a login | Yes | Yes | Yes | 83% pass · n=6 | None found |
| Penguin Peptidespenguinpeptides.com | 74 | Yes | Unknown | Unknown | 56% pass · n=9 | None found |
| Peptide Partnerspeptide.partners | Not ranked: catalog not reviewed yet | Unknown | Unknown | Unknown | n=105 | Warning letter |
| Simple Peptidesimplepeptide.com | Not ranked: catalog is behind a login | Yes | Yes | Yes | 60% pass · n=47 | None found |
| Spartan Peptidesspartanpeptides.com | 60 | Yes | No | Yes | none on file | None found |
| Swiss Chemsswisschems.is | 70 | Yes | Yes | Yes | 40% pass · n=10 | Warning letter |
| True Peptidestrue-peptides.com | 75 | Yes | Yes | Yes | none on file | None found |
● yes · ○ no · – not confirmed. Independent tests are public third-party results (for example Finnrick).
Closed or shut down
Still searched for. Each page explains what happened and lists active alternatives ranked by the same method.
- Amino Asylum
Amino Asylum is defunct: its old domain now serves unrelated gambling spam, and Finnrick's last test is from March 2025 (7 of 15 passed). Alternatives
- Peptide Sciences
Peptide Sciences (peptidesciences.com), long described as the largest US research-peptide vendor, stopped trading on March 6, 2026. Alternatives
- Strate Labs
Strate Labs (stratelabs.com) has closed. Alternatives