Longevity · 2 vendors stocking
FOXO4-D-Retro-Inverso, FOXO4-DRI peptide
Every point is published and checkable — how the value score is built ›
| Vendor | Listing | Size | Vial price | Per milligram, after code | Value | |
|---|---|---|---|---|---|---|
| ZestyRat Best buy | FOXO4 DRI – 10mg | 10mg | $149.99 | $13.50 |
9.0 | View › |
| Ascension Lowest price | FOX04-DRI 10mg | 10mg | $134.00 | $13.40 | 7.1 | View › |
Every row read from the vendor's live storefront on August 26, 2026. Ordered by value score, not by sticker price. Vials only — capsules, sprays and serums are excluded. Method ›
FOXO4-DRI is a D-retro-inverso peptide designed to disrupt the FOXO4–p53 interaction, and is the compound most associated with senolytic model work. Its synthesis is more involved than a standard L-peptide, and the price reflects that: it is among the most expensive per milligram on this board.
Deeper background, sourcing and quality notes live on our sister site: Peptides Uncaged ›
Always-on partner code, re-tested at a live checkout. It stacks on the prices above, so a ZestyRat row within 10% of the leader is usually the cheaper order. Every other working code is on the Deal Board.
Questions
The cheapest FOXO4-DRI vial across the three storefronts we index is Ascension Peptides at $134.00 for the 10mg vial — $13.40 per milligram Prices were read from the vendors' live catalogues on August 26, 2026.
Ascension Peptides, at $13.40 per milligram. That is 11% below the next-cheapest vendor on the board. The deepest premium catalog of the four. A free researcher account is required at checkout — about a minute, one time.
Across the vendors we index: 10mg. Larger vials are almost always cheaper per milligram, which is why the table above is sorted on that column rather than on sticker price.
Expensive by chemistry, not by markup. Both vendors that stock it price it far above the board average, and a listing dramatically below these two would be worth questioning rather than celebrating.
No. FOXO4-DRI is sold by every vendor listed here for laboratory research use only. Nothing on this page is medical advice or a recommendation to use any compound.
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