Retatrutide 99.6% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this retatrutide at 99.6% purity via HPLC. Quantity was 5% over the labeled 30mg, and endotoxins were below LOQ. This test is recent (under 3 months old) and customers can cross-check on the lab's public verification URL.
- no batch ID
- Test date
- 2026-02-22
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 31.5mg
- Endotoxins
- below LOQ
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.3
- Label dose
- 30mg
How this result compares
This Retatrutide certificate's tested purity of 99.60% ranks higher than 20% of the 9823 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.
Zlz Peptide has 274 certificates in our corpus, including 100 for Retatrutide at a median tested purity of 99.84%.
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
sha256:87222e7d7f39d7ee…
— immutable copy held by TitrateLab