Ranked by Finnrick trust score, purity testing, and price.
Good Science is our #1 pick for Retatrutide + Cagrilintide. Across 2 tracked vendors, prices range from $110.00 to $150.00, verified by Peptide Compare on 10 Oct 2026. Prices are scraped from vendor sites; trust scores come from Finnrick blind tests.
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| Rank | Vendor | Trust score | Per mg |
|---|---|---|---|
| #1 | Good Science | untested | $11.00 |
| #2 | Hydro Research | untested | $15.00 |
Our composite score weighs Finnrick blind-testing trust scores (62%), price competitiveness (25%), and stock availability (13%). Vendors without Finnrick data are sorted by price below scored vendors. We never accept payment for rankings. Learn more.