Finnrick, an independent testing programme, publishes 38 assays for LN Peptides: 28 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 10 did not. Most recent assay 3 Aug 2026.
LN Peptides operates from China, listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/ln-peptides.
Finnrick-tested with poor results. Tested across 5 peptide products with 31 total samples.
LN Peptides is listed as active. Finnrick Grade D. Finnrick avg score: 5.9/10 across 31 samples (5 products). Below-average quality. Exercise caution.
LN Peptides holds independent lab grade D, assigned across 31 graded samples, average score 5.9/10. 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 LN Peptides, 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 |
|---|---|---|
| Tirzepatide | 14 | 12 passed, 2 failed |
| Retatrutide | 12 | 10 passed, 2 failed |
| Tesamorelin | 9 | 3 passed, 6 failed |
| Ipamorelin | 2 | 2 passed, 0 failed |
| Mazdutide | 1 | 1 passed, 0 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 (31 samples) |
| Average grader score | 5.9/10 |
| Vendor type | Research-use supplier |
LN Peptides is listed as active and we hold 38 Finnrick assays (28 passing, 10 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 38 assays for LN Peptides: 28 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 10 did not. Most recent assay 3 Aug 2026.
Similar vendors: SwissChems, Bfflink, Reta-Peptide, HkRoids, Zenith Jove Peptide ZJ, Shanghai Baoju, Heman Peptide HM, Allen Biotechnology Co ABC.
Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
Other reviewed vendors: Loti Labs Peptides Review, LP Peptide Review, LSPL Peptides Review.