Third-party lab testing: 34 independent Janoshik assays on file, covering 22 substances, median measured purity 99.8%, most recent test 2026-02-11.
Finnrick, an independent testing programme, publishes 99 assays for Polaris Peptides: 64 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 27 did not. Most recent assay 13 May 2026.
Polaris Peptides operates from US?, listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/polaris-peptides.
Polaris Peptides sells direct to researchers. It lists 62 products, including Retatrutide, SS-31, BPC-157, Cagrilintide, Tirzepatide, and Epithalon, plus 27 other compounds.
In its own words: “Please sign in to your account or sign up for a new account to enter the site.”
We found no test results or certificates anywhere on Polaris Peptides's site.
Prices run from $30.00 to $400.00 across 62 listed products. Payment is by credit card and venmo.
Worth knowing before you order: no published COAs. We found no certificates of analysis or third-party test results anywhere on the site.
Site check: 62 products listed; payment by credit card, venmo.
Polaris Peptides is listed as active. Finnrick Grade C. Finnrick avg score: 7.3/10 across 97 samples (9 products). Mixed quality — some products test well, others below average.
Polaris Peptides holds independent lab grade C, assigned across 97 graded samples, average score 7.3/10. 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.
Community standing: 4.2/5 on Trustpilot from 33 reviews. Ratings of anonymous sellers of unregulated products are the weakest signal on this page; the assay and grading records carry more.
| Substance | Measured purity | Test date |
|---|---|---|
| Retatrutide | 99.43% | 2025-06-05 |
| Retatrutide | 99.28% | 2025-06-05 |
| Thymulin | 99.97% | 2024-12-16 |
| Retatrutide | 99.88% | 2024-11-11 |
| Retatrutide | 99.56% | 2024-11-11 |
| Pt-141 | 99.82% | 2024-11-11 |
| Foxo4-dri | 99.34% | 2024-11-07 |
| Survodutide | 99.88% | 2024-09-24 |
| Retatrutide | 99.91% | 2024-09-24 |
| GLOW | not reported | 2026-02-11 |
| Retatrutide | not reported | 2024-11-27 |
| Retatrutide | not reported | 2024-10-07 |
9 of these 12 assays report a measured purity figure. The other 3 confirm the substance was submitted and tested but carry no purity number on the certificate, which is not the same as a failed result.
All 34 lab tests for Polaris Peptides
| Product | Assays | Result |
|---|---|---|
| Retatrutide | 29 | 21 passed, 6 failed |
| Semaglutide | 17 | 13 passed, 3 failed |
| Tirzepatide | 15 | 14 passed, 1 failed |
| BPC-157 | 13 | 3 passed, 9 failed |
| PT-141 | 8 | 4 passed, 2 failed |
| Survodutide | 6 | 3 passed, 2 failed |
| CJC-1295 | 4 | 2 passed, 2 failed |
| GHK-Cu | 4 | 1 passed, 2 failed |
| Mazdutide | 3 | 3 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 | C (97 samples) |
| Average grader score | 7.3/10 |
| Trustpilot | 4.2/5 from 33 reviews |
| Independent assays on file | 34 |
| Median measured purity | 99.8% |
| Vendor type | Research-use supplier |
These details were read from Polaris Peptides's own website on 2026-08-10. Pages consulted:
Polaris Peptides is listed as active and we hold 34 independent Janoshik assays on file, median measured purity 99.8%; 99 Finnrick assays (64 passing, 27 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 34 third-party Janoshik assays for Polaris Peptides, covering 22 substances, with a median measured purity of 99.8%. The most recent is dated 2026-02-11. Finnrick, an independent testing programme, publishes 99 assays for Polaris Peptides: 64 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 27 did not. Most recent assay 13 May 2026.
Polaris Peptides accepts Credit Card, Venmo.
Tested substances: GLOW, Retatrutide, Semaglutide, Nad+, DSIP, Epithalon 10mg, Bpc-157 10mg.
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Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
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