B+
Composite 7.4 / 10
Last updated 2026-04-29. Composite is computed from the live database; missing sub-scores redistribute weight across the others.
Editorial summary
Top Retatrutide vendor by score (9.0 across 14 tests). Strong on metabolic peptides.
Peptide breakdown
| Peptide | Score | Lab quality | Tests | Purity | Qty var. | $/mg verified | Last test | Ranking |
|---|---|---|---|---|---|---|---|---|
| Ipamorelin | 9.0A |
9.0 | 6 | 99.4% | — | — | 2026-04-15 | view |
| Tirzepatide | 8.4B+ |
8.4 | 14 | 98.8% | — | — | 2026-04-15 | view |
| Retatrutide | 7.0B |
9.0 | 14 | 99.5% | — | — | 2026-04-15 | view |
COA transparency
- ✓ Publishes per-batch COAs (not just one COA for everyone)
- ✓ Both HPLC and mass spec shown
- ○ Endotoxin or sterility data shown (pending)
- ○ At least one COA independently cross-checked (pending)
- ✓ Most recent COA within 90 days (2026-04-15)
All vendor grades, side-by-side
Compare Paradigm Peptide against every other vendor in the grade hub →
Top-5 ranked vendors per peptide, plus the highest-rated vendors overall. Daily refresh.