Finnrick, an independent testing programme, publishes 22 assays for YB Peptide: 17 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 5 did not. Most recent assay 1 Jun 2026.
YB Peptide operates from China, listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/yb-peptide.
Finnrick-tested with mixed results. Tested across 2 peptide products with 13 total samples.
YB Peptide is listed as active. Finnrick Grade C. Finnrick avg score: 7.4/10 across 13 samples (2 products). Mixed quality — some products test well, others below average.
YB Peptide holds independent lab grade C, assigned across 13 graded samples, average score 7.4/10. 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.
| Product | Assays | Result |
|---|---|---|
| Retatrutide | 8 | 8 passed, 0 failed |
| BPC-157 | 5 | 4 passed, 1 failed |
| Tesamorelin | 5 | 3 passed, 2 failed |
| Tirzepatide | 4 | 2 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 | C (13 samples) |
| Average grader score | 7.4/10 |
| Vendor type | Research-use supplier |
These details were read from YB Peptide's own website on 2026-08-10. Pages consulted:
YB Peptide is listed as active and we hold 22 Finnrick assays (17 passing, 5 failing its purity threshold); an independent lab grade of C. 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 22 assays for YB Peptide: 17 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 5 did not. Most recent assay 1 Jun 2026.
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