Independent Lab Testing
Certificates of Analysis
Every Certificate of Analysis we've issued, each tied to the batch it tested.
12 certificates
SYN-COA-2026-RET060-2109PASS
Reta Pen 60mgRetatrutideSYN-RET060-2109 · Aug 05, 202698.8% purity
Open certificate →SYN-COA-2026-RET060-2108PASS
Reta Pen 60mgRetatrutideSYN-RET060-2108 · Aug 05, 202698.8% purity
Open certificate →SYN-COA-2026-RET060-2107PASS
Reta Pen 60mgRetatrutideSYN-RET060-2107 · Aug 04, 202699.3% purity
Open certificate →SYN-COA-2026-YWRZ3560PASS
Reta Pen 60mgRetatrutideYWRZ3560 · Aug 202698.9% purity
Open certificate →SYN-COA-2026-RET040-2106PASS
Reta Pen 40mgRetatrutideSYN-RET040-2106 · Jul 13, 202699.0% purity
Open certificate →SYN-COA-2026-RET040-2105PASS
Reta Pen 40mgRetatrutideSYN-RET040-2105 · Jul 13, 202699.3% purity
Open certificate →SYN-COA-2026-RET040-2104PASS
Reta Pen 40mgRetatrutideSYN-RET040-2104 · Jul 13, 202698.9% purity
Open certificate →SYN-COA-2026-RET120-2103PASS
Reta Liquid 120mgRetatrutideSYN-RET120-2103 · Jul 12, 202698.9% purity
Open certificate →SYN-COA-2026-RET120-2129PASS
Reta Liquid 120mgRetatrutideSYN-RET120-2129 · Jul 202699.0% purity
Open certificate →SYN-COA-2026-RET120-2128PASS
Reta Liquid 120mgRetatrutideSYN-RET120-2128 · Jul 202699.1% purity
Open certificate →SYN-COA-2026-RET040-2102PENDING
Reta Pen 40mgRetatrutideSYN-RET040-2102 · Jun 09, 2026
Open certificate →SYN-COA-2026-RET040-2101PASS
Reta Pen 40mgRetatrutideSYN-RET040-2101 · Jan 15, 202699.1% purity
Open certificate →