TB-500 97.8% Purity — Reta PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this TB-500 batch (jan 4, 2026) at 97.8% purity via HPLC and mass quantification. Quantity was 3% below the 5mg label (4.85mg tested). Endotoxin status is not applicable for this test. The test is recent (under 3 months old) and customers can cross-check on the lab's public verification URL.
- no endotoxin test
- Test date
- 2026-03-18
- Testing lab
- LabE
- Batch / lot
- jan 4, 2026
- Quantity
- 4.85mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.0
- Label dose
- 5mg
How this result compares
This TB-500 certificate's tested purity of 97.80% ranks higher than 6% of the 1248 TB-500 certificates with a purity result we have catalogued (median 99.39%).
Tested 2026-03-18 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 66% of our catalogued TB-500 certificates.
Reta Peptide has 249 certificates in our corpus, including 14 for TB-500 at a median tested purity of 98.13%.
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
sha256:423f997d47a1c0d8…
— immutable copy held by TitrateLab