Retatrutide 99.5% Purity — Zztai PeptideCertificate of Analysis · Independent third-party lab result
LabG tested this retatrutide at 99.5% purity via HPLC and mass quantification. The tested quantity was 4.6mg, an 8% deviation from the 5mg label. Endotoxin status is unknown. This test is recent (under 3 months old) and customers can cross-check on the lab's public verification URL.
- no batch ID
- quantity deviation (8%)
- no endotoxin test
- Test date
- 2026-02-15
- Testing lab
- LabG
- Batch / lot
- (no batch ID)
- Quantity
- 4.6mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 6.0
- Label dose
- 5mg
How this result compares
This Retatrutide certificate's tested purity of 99.50% ranks higher than 15% of the 9822 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-02-15 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 51% 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
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