Retatrutide 99.8% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result
Retatrutide (Black Cap) by QSC tested at 99.79% purity with 5.26mg fill versus 5mg labeled (5.2% overage). Janoshik analysis complete 28 MAY 2026.
- Test date
- 2026-05-28
- Testing lab
- Janoshik
- Batch / lot
- Black Cap
- Quantity
- 5.26 mg
- Endotoxins
- —
- Assay method
- —
- Label dose
- 5mg
How this result compares
This Retatrutide certificate's tested purity of 99.79% ranks higher than 39% of the 10449 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-05-28 by Janoshik. This test is newer than 77% of our catalogued Retatrutide certificates.
Qingdao Sigma Chemical has 515 certificates in our corpus, including 51 for Retatrutide at a median tested purity of 99.68%.
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TEST REPORT JANOSHIK E-mail: [EMAIL_REDACTED] Web: www.janoshik.com Task Number #165275 Testing ordered > 18 MAY '26 Sample received > 21 MAY '26 Client Telegram @tracyfromqsc Sample Retatrutide 5mg Manufacturer QSC [NAME_REDACTED] description > See picture or pictures attached. Tests requested > [NAME_REDACTED] peptide blind test (Semaglutide, Tirzepatide and Retatrutide) Results > Retatrutide 5.26 mg Purity 99.790% Comments > Analysis conducted > 28 MAY 2026 Signature > Verify this test at www.janoshik.com/verify/ with the following unique key YDTPFQR7DTRP