Vendor and compound
FOXO4-DRI from BioLongevity Labs
BioLongevity Labs lists FOXO4-DRI at $27.50 per mg, 10% over the $25.00 peer median. No third-party certificate for FOXO4-DRI from BioLongevity Labs has been located, so nothing here establishes what is in the vial. The cheapest listed price for FOXO4-DRI anywhere in the index is $14.00 per mg at Good Science Bio.
All FOXO4-DRI vendors · BioLongevity Labs profile · scores 64.4 of 100, rank 30 · 0 certificates for this compound · verified 1 Aug 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| Reference vial | — | $27.50 | +10% | — |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
No third-party certificate for FOXO4-DRI from BioLongevity Labs has been located.
That is a statement about the public record, not an accusation. The vendor may test and not publish, or publish somewhere we have not read. What it means for a buyer is that the price above is the only thing established here, and price says nothing about what is in the vial.
Vendors whose certificates you can check yourself lists the ones where that gap is closed.
Other vendors selling FOXO4-DRI
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Polaris Peptides | 86.6 | $25.00 | 0 |
| PeptidePlugs | 86.3 | — | 1 |
| Simple Peptide | 84.9 | $18.00 | 0 |
| Good Science Bio | 75.8 | $14.00 | 0 |
| Biotech Peptides | 65.7 | $27.00 | 0 |
Ordered by overall evidence score. See every vendor listing FOXO4-DRI.
Questions
Is FOXO4-DRI from BioLongevity Labs third-party tested?
Not so far as this index can establish. No third-party certificate for FOXO4-DRI from BioLongevity Labs has been located. The vendor may test and not publish; what can be said is that nothing public establishes the contents of a vial.
How much does FOXO4-DRI cost at BioLongevity Labs?
$27.50 per milligram. The peer median across every vendor we price for FOXO4-DRI is $25.00 per mg, so this is +10% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is BioLongevity Labs a good place to buy FOXO4-DRI?
BioLongevity Labs scores 64.4 of 100 on the published rubric and ranks 30 overall, computed from its documentation rather than from opinion. For FOXO4-DRI specifically no certificate is on file, which is the gap to weigh. Good Science Bio lists it cheaper at $14.00 per mg.