Retatrutide 99.8% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this retatrutide at 99.85% purity using HPLC and mass quantification. The quantity was within 1% of the label (20mg vs 19.9mg). Endotoxin status is not applicable for this test type. The test is older (6-12 months) and lacks a specific batch ID, but a verification URL is available.
- older (6-12 months)
- no batch ID
- no endotoxin test
- Test date
- 2025-10-05
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 19.9mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.9
- Label dose
- 20mg
How this result compares
This Retatrutide certificate's tested purity of 99.85% ranks higher than 54% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2025-10-05 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 18% 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
sha256:431f770ed4eb9cee…
— immutable copy held by TitrateLab