Third-party lab testing: 2 independent Janoshik assays on file, covering 2 substances, median measured purity 99.5%, most recent test 2024-10-18.
Finnrick, an independent testing programme, publishes 19 assays for Prime Peptides: 7 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 12 did not. Most recent assay 10 Jul 2025.
Prime Peptides registered as [object Object], listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/prime-peptides.
Finnrick-tested with mixed results. Tested across 4 peptide products with 19 total samples.
Prime Peptides is listed as active. Finnrick Grade C. Finnrick avg score: 5.8/10 across 19 samples (4 products). Mixed quality — some products test well, others below average.
Prime Peptides holds independent lab grade C, assigned across 19 graded samples, average score 5.8/10. 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.
| Substance | Measured purity | Test date |
|---|---|---|
| Bpc-157 5mg | 99.78% | 2024-10-18 |
| Tirzepatide 15mg | 99.15% | 2024-07-16 |
| Product | Assays | Result |
|---|---|---|
| BPC-157 | 6 | 1 passed, 5 failed |
| GHK-Cu | 5 | 0 passed, 5 failed |
| Ipamorelin | 5 | 5 passed, 0 failed |
| CJC-1295 | 3 | 1 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 (19 samples) |
| Average grader score | 5.8/10 |
| Independent assays on file | 2 |
| Median measured purity | 99.5% |
| Vendor type | Research-use supplier |
These details were read from Prime Peptides's own website on 2026-08-10. Pages consulted:
Prime Peptides is listed as active and we hold 2 independent Janoshik assays on file, median measured purity 99.5%; 19 Finnrick assays (7 passing, 12 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. We hold 2 third-party Janoshik assays for Prime Peptides, covering 2 substances, with a median measured purity of 99.5%. The most recent is dated 2024-10-18. Finnrick, an independent testing programme, publishes 19 assays for Prime Peptides: 7 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 12 did not. Most recent assay 10 Jul 2025.
Tested substances: Tirzepatide 15mg.
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