Ranked by Finnrick trust score, purity testing, and price.
Amino Sequence is our #1 pick for FOXO4-DRI, with a Finnrick trust score of 7.8/10. Across 28 tracked vendors, prices range from $44.99 to $450.00, verified by Peptide Compare on 23 Sep 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 | Amino Sequence | 7.8/10 | $7.00 |
| #2 | NUPEPS Peptides | 9.0/10 | $15.00 |
| #3 | Eros Peptides | 6.9/10 | $13.00 |
| #4 | Paramount Peptides | 6.7/10 | $17.00 |
| #5 | Oasis Labs | 5.7/10 | $21.75 |
| #6 | BioLongevity Labs | 6.0/10 | $27.50 |
| #7 | Peptidology | 7.6/10 | $13.95 |
| #8 | Polaris PeptidesOut of stock | 7.3/10 | $25.00 |
| #9 | Genetic PeptideOut of stock | untested | $3.00 |
| #10 | AMC Essentials | untested | $3.09 |
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.