Retatrutide 99.7% Purity — Zztai PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this retatrutide batch (12/9/25-SS67) at 99.74% purity via HPLC, with quantity matching the label within 1%. The test is recent (under 3 months) and a verification URL is available. However, the endotoxin status is unknown, which is a concern for injectable peptides.
- no endotoxin test
- Test date
- 2026-02-22
- Testing lab
- LabE
- Batch / lot
- 12/9/25-SS67
- Quantity
- 30.2mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.6
- Label dose
- 30mg
How this result compares
This Retatrutide certificate's tested purity of 99.74% ranks higher than 34% of the 9822 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-02-22 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 55% of our catalogued Retatrutide certificates.
Zztai Peptide has 35 certificates in our corpus, including 11 for Retatrutide at a median tested purity of 99.74%.
Test report image
Finnrick
Artifact capturedWe have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.
Verify on the upstream labSaved source document
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— immutable copy held by TitrateLab