Optima Supply

Optima Supply (optimasupply.is) is a US-based (Milwaukee, WI) research-peptide supplier whose clear strength is verification. It runs a dedicated /lab-results library and puts a QR code on every vial linking to that batch's Certificate of Analysis, and the testing isn't from one lab but three named third parties — Janoshik, Chromate Labs, and ILS Labs. The panel is unusually complete: HPLC purity and identity, two or more endotoxin screens, heavy-metals, TAMC/TYMC sterility, and multi-vial dosage-accuracy checks rather than a single spot test. We read real reports across the catalog and confirmed 99%+ purities (for example Opti-(T) 10mg at 99.66% with passing endotoxin and sterility panels, the CagriSema blend at 99.91%, and Cagrilintide at 99.93%).

That public, multi-lab, full-panel, per-batch testing is exactly what our 40% COA factor rewards most, and it anchors the score at the top of the range. The rest of the picture is solid rather than exceptional: reputation is real but single-platform (233 positive Trustpilot reviews, no Reddit/Eroids corroboration), transparency is good (a disclosed Milwaukee address, branded email and phone, a wholesale program, and a roughly two-year domain), and operations are strong (real card processing plus Venmo, deep stock). The GLP-1/2/3 line is sold under Opti-(R/S/T/C) codenames — we decoded Opti-(R)=Retatrutide and Opti-(S)=Semaglutide from the product slugs, Opti-(C)=Cagrilintide from the CagriSema COA, and inferred Opti-(T)=Tirzepatide from the pattern and its size ladder.