Finnrick, an independent testing programme, publishes 110 assays for Yimei: 93 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 17 did not. Most recent assay 10 Jul 2026.
Yimei operates from China, listed by Finnrick as "Not found". Source: Finnrick, https://www.finnrick.com/vendors/yimei.
Finnrick-tested with poor results. Tested across 8 peptide products with 103 total samples.
Yimei is listed as active. Finnrick Grade D. Finnrick avg score: 6.6/10 across 103 samples (8 products). Below-average quality. Exercise caution.
Yimei holds independent lab grade D, assigned across 103 graded samples, average score 6.6/10. That grade comes from an independent grader's own sampling, not from PeptideAtlas, and it describes the samples that grader obtained rather than every batch sold.
No independent third-party assay is on file for Yimei, and we have not yet compiled a profile of its own website. An untested vendor has not failed a test — this is an absence of evidence, not evidence against it.
| Product | Assays | Result |
|---|---|---|
| Retatrutide | 51 | 43 passed, 8 failed |
| GHK-Cu | 15 | 15 passed, 0 failed |
| BPC-157 | 11 | 8 passed, 3 failed |
| Ipamorelin | 8 | 8 passed, 0 failed |
| CJC-1295 | 7 | 5 passed, 2 failed |
| Tirzepatide | 7 | 6 passed, 1 failed |
| Tesamorelin | 6 | 5 passed, 1 failed |
| TB-500 | 5 | 3 passed, 2 failed |
Source: Finnrick, as published 2026-08-09. Pass and fail are Finnrick's classification against its own threshold, not ours.
| Status | Active |
|---|---|
| Independent lab grade | D (103 samples) |
| Average grader score | 6.6/10 |
| Vendor type | Research-use supplier |
| Satisfaction | 0.4/5 |
|---|---|
| Delivery | 4.6/5 |
| Customer service | 4.8/5 |
| Packaging | 4.8/5 |
| Ease of purchase | 4.8/5 |
| Payment | 4.6/5 |
Scored out of 5 by the same independent grader, from its own buyers rather than from this site.
Yimei is listed as active and we hold 110 Finnrick assays (93 passing, 17 failing its purity threshold); an independent lab grade of D. That is evidence about the batches that were tested or published, not a guarantee about the vial you receive.
Yes. Finnrick, an independent testing programme, publishes 110 assays for Yimei: 93 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 17 did not. Most recent assay 10 Jul 2026.
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