Lab & transparency

Certificates of analysis

Every batch is tested by an independent laboratory using HPLC and mass spectrometry. Review the matching certificate before you buy.

Retatrutide10 mg

Verified purity >99% · HPLC / MS

Request COA

Tirzepatide10 mg

Verified purity >99% · HPLC / MS

Request COA

TB-50010 mg

Verified purity >99% · HPLC / MS

Request COA

Note. Certificates are issued by batch number. When your order arrives, you can verify that the batch matches the document provided. For any questions, write to us atsupport@epsilonpeptides.com.

For research use only. Not for human or veterinary consumption.