Tirzepatide 99.8% Purity — YCCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, Peptide Test. It reports 99.819% purity for YC's Tirzepatide (batch Yiwu Changtu orange cap). However, the quantity tested was 14.03% over the labeled 60mg, and there is no information on endotoxin levels or the test method used for purity. The test is stale, being over a year old. Customers can cross-check on the lab's public verification URL.
- stale (1+ years old)
- no endotoxin test
- vague purity language
- Test date
- 2025-04-02
- Testing lab
- Peptide Test
- Batch / lot
- [NAME_REDACTED] orange cap
- Quantity
- 68.418mg
- Endotoxins
- —
- Assay method
- —
How this result compares
This Tirzepatide certificate's tested purity of 99.82% ranks higher than 48% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-04-02 by Peptide Test. This test is newer than 11% of our catalogued Tirzepatide certificates.
YC has 13 certificates in our corpus, including 8 for Tirzepatide at a median tested purity of 99.72%.