Third-party lab testing: 2 independent Janoshik assays on file, covering 2 substances, median measured purity 99.7%, most recent test 2025-02-05.
Finnrick, an independent testing programme, publishes 33 assays for Royal Peptides: 24 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 9 did not. Most recent assay 23 Jul 2026.
Royal Peptides operates from US, registered as [object Object], listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/royal-peptides.
Royal Peptides sells direct to researchers and at wholesale. The site says it has traded since 2023. It lists 133 products, including Growth Hormone, Vesugen, Adamax, Dihexa, Tirzepatide, and Thymalin, plus 35 other compounds. It also produces and labels to order, so stock sold under other brand names may come from here.
In its own words: “Four standards define how we approach the research-product experience.”
Royal Peptides publishes 16 certificates of analysis on its site, all credited to Janoshik Analytical. The vendor chose which batches to publish, so those results do not tell you what is in the vial you receive. Of the 12 product pages we opened, every one states 99% purity and every one links its own certificate.
Prices run from $0.01 to $875.00 across 133 listed products. Payment is by cryptocurrency, bank transfer, credit card, and paypal.
Site check: 133 products listed; 16 certificates of analysis published; payment by cryptocurrency, bank transfer, credit card, paypal.
Royal Peptides is listed as active. Finnrick Grade C. Finnrick avg score: 6.8/10 across 31 samples (3 products). Mixed quality — some products test well, others below average.
Royal Peptides holds independent lab grade C, assigned across 31 graded samples, average score 6.8/10. 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 |
|---|---|---|
| Tirzepatide 60mg | 99.81% | 2025-02-05 |
| Tirzepatide 30mg | 99.69% | 2024-09-23 |
| Product | Assays | Result |
|---|---|---|
| Retatrutide | 15 | 9 passed, 6 failed |
| Tirzepatide | 10 | 8 passed, 2 failed |
| Semaglutide | 8 | 7 passed, 1 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 (31 samples) |
| Average grader score | 6.8/10 |
| Independent assays on file | 2 |
| Median measured purity | 99.7% |
| Certificates of analysis | Vendor states COAs are available |
| Vendor type | Research-use supplier |
This vendor advertises 99%. Across 2 independent Janoshik assays of its products, median measured purity is 99.7%, most recently 2025-02-05.
These details were read from Royal Peptides's own website on 2026-08-10. Pages consulted:
Royal Peptides is listed as active and we hold 2 independent Janoshik assays on file, median measured purity 99.7%; 33 Finnrick assays (24 passing, 9 failing its purity threshold); 16 certificates of analysis published on its own site; 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 Royal Peptides, covering 2 substances, with a median measured purity of 99.7%. The most recent is dated 2025-02-05. Finnrick, an independent testing programme, publishes 33 assays for Royal Peptides: 24 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 9 did not. Most recent assay 23 Jul 2026.
Royal Peptides accepts Cryptocurrency, Bank Transfer, Credit Card, PayPal.
Tested substances: Tirzepatide 60mg, Tirzepatide 30mg.
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