Finnrick, an independent testing programme, publishes 22 assays for M-Peptides: 15 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 7 did not. Most recent assay 22 Jun 2026.
M-Peptides listed by Finnrick as "Trading", has no storefront on record — Finnrick lists only a messaging or social contact. Source: Finnrick, https://www.finnrick.com/vendors/m-peptides.
M-Peptides sells direct to researchers and at wholesale. It lists 17 products, including Semax, 5-Amino-1MQ, SS-31, SLU-PP-332, Thymosin Alpha-1, and MOTS-c, plus 7 other compounds.
In its own words: “Product quality: Sourced from reputable global research chemical suppliers; positioned as highest purity.”
Of the 12 product pages we opened, every one states ≥98% purity and 11 link a certificate for that item.
Prices run from $50.00 to $300.00 across 17 listed products. Payment is by credit card. Orders ship with USPS.
Site check: 17 products listed; payment by credit card; ships via USPS.
M-Peptides is listed as active. Finnrick Grade C. Finnrick avg score: 7.7/10 across 18 samples (2 products). Mixed quality — some products test well, others below average.
M-Peptides holds independent lab grade C, assigned across 18 graded samples, average score 7.7/10. 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 |
|---|---|---|
| Tirzepatide | 13 | 11 passed, 2 failed |
| Retatrutide | 9 | 4 passed, 5 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 (18 samples) |
| Average grader score | 7.7/10 |
| Vendor type | Research-use supplier |
| Satisfaction | 4.8/5 |
|---|---|
| Delivery | 4.8/5 |
| Customer service | 4.8/5 |
| Packaging | 4.8/5 |
| Ease of purchase | 4.8/5 |
| Payment | 4.8/5 |
Scored out of 5 by the same independent grader, from its own buyers rather than from this site.
These details were read from M-Peptides's own website on 2026-08-10. Pages consulted:
M-Peptides is listed as active and we hold 22 Finnrick assays (15 passing, 7 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 M-Peptides: 15 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 7 did not. Most recent assay 22 Jun 2026.
M-Peptides accepts Credit Card.
M-Peptides uses USPS.
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