Vendor profile
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Zhengzhou Lan Yun Cosmetic Trading
B+
Composite 8.4 / 10
Last updated 2026-08-17. 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 | 9.0B+ |
8.7 | 7 | — | — | — | — | view |
| Tirzepatide | 8.5B+ |
8.2 | 8 | — | — | — | — | view |
| Retatrutide | 8.1B+ |
7.6 | 11 | — | — | — | — | view |
| Ipamorelin | — |
— | 0 | — | — | — | — | view |
| PT-141 | — |
— | 0 | — | — | — | — | view |
| DSIP | — |
— | 0 | — | — | — | — | view |
| Semax | — |
— | 0 | — | — | — | — | view |
| SS-31 | — |
— | 0 | — | — | — | — | view |
| TB-500 | — |
— | 0 | — | — | — | — | view |
| Tesamorelin | — |
— | 0 | — | — | — | — | view |
| BPC-157 | — |
— | 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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