This vendor is flagged.
Reported shut down in 2025. Listing retained for historical lab-test data. See all flagged vendors and our flagging criteria.
Vendor profile
Research · US · —
Peptide Sciences
D
Composite 4.9 / 10
Last updated 2026-10-05. Composite is computed from the live database; missing sub-scores redistribute weight across the others.
Peptide breakdown
| Peptide | Score | Lab quality | Tests | Purity | Qty var. | $/mg verified | Last test | Ranking |
|---|---|---|---|---|---|---|---|---|
| GHK-Cu | 7.2B |
9.0 | 6 | — | — | — | — | view |
| Semaglutide | 6.3C |
7.8 | 15 | — | — | — | — | view |
| Ipamorelin | 6.1C |
7.6 | 9 | — | — | — | — | view |
| PT-141 | 6.0C |
7.5 | 6 | — | — | — | — | view |
| Tirzepatide | 5.5C |
6.8 | 17 | — | — | — | — | view |
| BPC-157 | 4.6D |
5.8 | 13 | — | — | — | — | view |
| Retatrutide | 4.5D |
5.6 | 41 | — | — | — | — | view |
| Tesamorelin | 3.2E |
4.0 | 4 | — | — | — | — | view |
| CJC-1295 | 1.6F |
2.0 | 11 | — | — | — | — | view |
| Sermorelin | — |
— | 0 | — | — | — | — | view |
| TB-500 | — |
— | 0 | — | — | — | — | view |
COA transparency
- ○ Publishes per-batch COAs (not just one COA for everyone) (pending)
- ○ Both HPLC and mass spec shown (pending)
- ○ Endotoxin or sterility data shown (pending)
- ○ At least one COA independently cross-checked (pending)
- ○ Most recent COA within 90 days (pending)
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