TB-500 97.2% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this TB-500 batch at 97.25% purity via HPLC and mass quantification. The tested quantity was 1.76mg against a 2mg label, representing a 12% deviation. Endotoxin status is unknown, and the test is older (6-12 months). Customers can cross-check on the lab's public verification URL.
- no endotoxin test
- older (6-12 months)
- quantity deviation (12%)
- Test date
- 2025-10-09
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 1.76mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 3.0
- Label dose
- 2mg
How this result compares
This TB-500 certificate's tested purity of 97.25% ranks higher than 5% of the 1248 TB-500 certificates with a purity result we have catalogued (median 99.39%).
Tested 2025-10-09 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 23% of our catalogued TB-500 certificates.
Zlz Peptide has 274 certificates in our corpus, including 5 for TB-500 at a median tested purity of 97.25%.
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
sha256:83161d9b04e10e46…
— immutable copy held by TitrateLab