Tesamorelin 98.4% Purity — Zen PeptidesCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. Tesamorelin from Zen Peptides showed 98.4% purity via HPLC and mass quantification. The tested quantity was 25.7mg against a 20mg label, a significant deviation of +28.5%. Endotoxin status is not applicable, and the test is recent (3-6 months old).
- quantity deviation (+28.5%)
- no batch ID
- no endotoxin test
- Test date
- 2025-11-17
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 25.7mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 2.3
- Label dose
- 20mg
How this result compares
This Tesamorelin certificate's tested purity of 98.40% ranks higher than 9% of the 2240 Tesamorelin certificates with a purity result we have catalogued (median 99.46%).
Tested 2025-11-17 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 24% of our catalogued Tesamorelin certificates.
Zen Peptides has 32 certificates in our corpus, including 6 for Tesamorelin at a median tested purity of 98.94%.
Test report image
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