Third-party lab testing: 2 independent Janoshik assays on file, covering 2 substances, median measured purity 99.2%, most recent test 2026-01-08.
Peptide supplier identified through Janoshik analytical testing records.
PeptideCritic.com Best Sources Available is listed as active. Discovered via Janoshik third-party lab testing.
| Substance | Measured purity | Test date |
|---|---|---|
| Tirzepatide 30mg | 99.21% | 2026-01-08 |
| NAD 500 Mg | not reported | 2026-01-08 |
1 of these 2 assays report a measured purity figure. The other 1 confirm the substance was submitted and tested but carry no purity number on the certificate, which is not the same as a failed result.
| Status | Active |
|---|---|
| Independent assays on file | 2 |
| Median measured purity | 99.2% |
| Certificates of analysis | Vendor states COAs are available |
| Vendor type | Research-use supplier |
PeptideCritic.com Best Sources Available is listed as active and we hold 2 independent Janoshik assays on file, median measured purity 99.2%. 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 PeptideCritic.com Best Sources Available, covering 2 substances, with a median measured purity of 99.2%. The most recent is dated 2026-01-08.
Tested substances: Tirzepatide 30mg.
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