Third-party lab testing: 1 independent Janoshik assay on file, median measured purity 99.4%, most recent test 2026-02-09.
Listed in the Finnrick vendor directory. Not yet tested.
Gray Labs is listed as active. Tracked by Finnrick. No test data available yet.
| Substance | Measured purity | Test date |
|---|---|---|
| 20mg Retatrutide | 99.41% | 2026-02-09 |
| Status | Active |
|---|---|
| Independent assays on file | 1 |
| Median measured purity | 99.4% |
| Vendor type | Research-use supplier |
These details were read from Gray Labs's own website on 2026-08-10. Pages consulted:
Gray Labs is listed as active and we hold 1 independent Janoshik assay on file, median measured purity 99.4%. That is evidence about the batches that were tested or published, not a guarantee about the vial you receive.
Yes. We hold 1 third-party Janoshik assay for Gray Labs, with a median measured purity of 99.4%. The most recent is dated 2026-02-09.
Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.