Vendor profile
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PeptiSlim
B+
Composite 8.6 / 10
Last updated 2026-08-31. 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 |
|---|---|---|---|---|---|---|---|---|
| Retatrutide | 8.9B+ |
8.7 | 26 | — | — | — | — | view |
| Tirzepatide | 8.9B+ |
8.8 | 29 | — | — | — | — | view |
| GHK-Cu | 8.7B+ |
8.7 | 6 | — | — | — | — | view |
| Semaglutide | 7.6B+ |
7.1 | 4 | — | — | — | — | view |
| Tesamorelin | 5.2C |
4.2 | 4 | — | — | — | — | view |
| PT-141 | — |
— | 0 | — | — | — | — | 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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