TB-500 91.0% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this TB-500 batch at 91.03% purity using HPLC and mass quantification. The quantity was slightly over-labeled by 2.4% (5.12mg tested vs 5mg label). 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)
- no batch ID
- Test date
- 2025-10-23
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 5.12mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 4.9
- Label dose
- 5mg
How this result compares
This TB-500 certificate's tested purity of 91.03% ranks higher than 2% of the 1248 TB-500 certificates with a purity result we have catalogued (median 99.39%).
Tested 2025-10-23 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 25% 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:cc1017f7c5f206d6…
— immutable copy held by TitrateLab