Independent side-by-side comparison of Gray Labs and UWA Elite Peptides — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: UWA Elite Peptides holds the stronger independent lab grade (ungraded vs E); UWA Elite Peptides has more published third-party tests (5 vs 1).
Every figure below is either measured by an independent laboratory or read from the vendor's own website, and the source is named against it. PeptideAtlas is not affiliated with either vendor.
Gray Labs: 1 independent Janoshik assay, median measured purity 99.4%, most recent 2026-02-09. UWA Elite Peptides: 5 independent Janoshik assays, across 5 substances, median measured purity 99.6%, most recent 2026-02-26.
| Attribute | Gray Labs | UWA Elite Peptides |
|---|---|---|
| Independent lab grade | Not graded | E |
| Third-party tests | 1 test, avg purity 99.4% | 5 tests, avg purity 99.4% |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Substance | Gray Labs | UWA Elite Peptides |
|---|---|---|
| 20mg Retatrutide | 99.41% (1 assay, latest 2026-02-09) | Not tested |
| Tesmorelin 20mg | Not tested | 99.56% (1 assay, latest 2026-02-26) |
| Kisspeptin 10mg | Not tested | 99.67% (1 assay, latest 2026-02-26) |
| Glutathione 1500mg | Not tested | 98.60% (1 assay, latest 2026-02-26) |
| Tirzepatide10mg | Not tested | 99.69% (1 assay, latest 2026-02-25) |
| 5-Amino-1-methylquinolinium 5mg | Not tested | purity not reported (1 assay, latest 2025-06-17) |
| Checked | Gray Labs | UWA Elite Peptides |
|---|---|---|
| Certificates of analysis | Not stated | 2 published on the site |
| Products listed | Not stated | 21 |
| Public pricing | Not stated | Listed on the site |
| Payment methods | Not stated | Cryptocurrency, Credit Card, PayPal |
| Ships to | Not stated | Europe, Asia, Worldwide |
| Stated origin | Not stated | Hong Kong |
UWA Elite Peptides. Gray Labs: 1 independent Janoshik assay, median measured purity 99.4%, most recent 2026-02-09. UWA Elite Peptides: 5 independent Janoshik assays, across 5 substances, median measured purity 99.6%, most recent 2026-02-26. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
We have not read Gray Labs' site, and UWA Elite Peptides publishes 2 certificates of analysis on its own site. A published COA is the vendor's own document; the assay figures elsewhere on this page are independent of it.
Gray Labs does not state a shipping region, and UWA Elite Peptides states it ships to Europe, Asia, Worldwide. Both are read from the vendors' own sites.
Full profiles: Gray Labs, UWA Elite Peptides.
Full lab-test records: All 1 Gray Labs lab test, All 5 UWA Elite Peptides lab tests.
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