Where to Buy FOXO4-DRI in 2026: 3 Lab-Tested Sellers, From $5.64/mg With a Coupon Code
Where to buy FOXO4-DRI: PepAssess lists FOXO4-DRI at 12 vendors. As of November 12, 2026, the lowest price with a coupon code is $5.64/mg at Alpha Peptides (code PEPASSESS); the median across all sellers is $16.90/mg. Vendors are ranked by Evidence Score.
Prices and codes updated November 12, 2026 · re-checked every night
FOXO4-DRI is a modified version of part of the FOXO4 protein, built from D-amino acids in reverse order (a 'D-retro-inverso' design) so enzymes break it down slowly, plus a sequence that lets it enter cells.
Learn more about FOXO4-DRI from the published research: Cell (2017) · Nature Communications (2025)
The compounds listed on this page are for research purposes only, not for human consumption.
FOXO4-DRI reconstitution calculator →
FOXO4-DRI coupon codes
Prices with the code taken off · updated November 12, 2026 · re-checked every night
Every FOXO4-DRI coupon code
14 FOXO4-DRI sellers with a confirmed code — PepAssess's preferred vendor first, then highest Evidence Score.
| Shop | Score | Vial with code | Per mg | Per mg with code | vs typical | Code discount | Code | |
|---|---|---|---|---|---|---|---|---|
| Rebirth LabsPreferred | 84score | 10 mg vial $161.99 with code | $18.00/mg | $16.20/mg with code | — | 10% off | ShopShop ↗ | |
| BioLongevity Labs | 100score | — | — | — | — | 15% off | ShopShop ↗ | |
| Myoasis Labs | 99score | 10 mg vial $174 with code | $21.75/mg | $17.40/mg with code | — | 20% off | ShopShop ↗ | |
| Glow Peptides | 99score | 10 mg vial $161.99 with code | $18.00/mg | $16.20/mg with code | — | 10% off | ShopShop ↗ | |
| Peptide Giants | 89score | 10 mg vial $189.99 with code | $20.00/mg | $19.00/mg with code | — | 5% off | ShopShop ↗ | |
| Alpha Peptides | 87score | 10 mg vial $56.37 with code | $6.26/mg | $5.64/mg with code | 64% below typical | 10% off | ShopShop ↗ | |
| Disguised Alpha | 83score | — | — | — | — | 10% off | ShopShop ↗ | |
| CertaPeptides | 79score | — | — | — | — | 10% off | ShopShop ↗ | |
| Ouralus | 77score | 5 mg vial $77.40 with code | $15.48/mg | $15.48/mg with code | — | 10% off | ShopShop ↗ | |
| Ps Peptides | 77score | 5 mg vial $61.10 with code | $14.00/mg | $12.60/mg with code | — | 10% off | ShopShop ↗ | |
| Zesty Rat | 75score | 10 mg vial $134.99 with code | $15.00/mg | $13.50/mg with code | 14% below typical | 10% off | ShopShop ↗ | |
| VMAX Peptides | 63score | 10 mg vial $85.41 with code | $9.49/mg | $8.54/mg with code | 46% below typical | 10% off | ShopShop ↗ | |
| Peptuvia | 63score | 10 mg vial $350.10 with code | $38.90/mg | $35.01/mg with code | — | 10% off | ShopShop ↗ | |
| XLR8 | 15score | 10 mg vial $135.20 with code | $16.90/mg | $13.52/mg with code | — | 20% off | ShopShop ↗ |
Where to buy FOXO4-DRI: the short answer
What is the lowest FOXO4-DRI price with a coupon code?
As of November 12, 2026, the lowest FOXO4-DRI price PepAssess found with a coupon code is at Alpha Peptides: $5.64 per mg with code PEPASSESS (10% off; $6.26 per mg before the code). Prices are re-checked every night. Alpha Peptides coupon code
What is the best FOXO4-DRI coupon code?
As of November 12, 2026, the biggest FOXO4-DRI coupon code PepAssess has confirmed is PEPASSESS for 20% off at XLR8, which brings it to $13.52 per mg. PepAssess lists each code with its discount and the seller's Evidence Score, based on lab reports confirmed with the testing labs. XLR8 coupon code
Where can I buy lab-tested FOXO4-DRI?
As of November 12, 2026, PepAssess lists 12 online vendors selling FOXO4-DRI. 3 of them publish a FOXO4-DRI lab report that the testing lab confirmed on its own records. The highest-scoring vendors with a lab-confirmed FOXO4-DRI report are Myoasis Labs (99/100), Ouralus (77/100) and Zesty Rat (75/100). Compare all 12 FOXO4-DRI vendors on PepAssess
What is the best FOXO4-DRI vendor?
PepAssess ranks FOXO4-DRI vendors by Evidence Score (0–100): what each vendor documents — lab reports confirmed by the labs, how often it tests, business transparency and buyer protection. As of November 12, 2026, the top-scoring FOXO4-DRI vendors are BioLongevity Labs (100/100), Myoasis Labs (99/100) and Glow Peptides (99/100) — 1 of them with a lab-confirmed FOXO4-DRI report.
What is the cheapest FOXO4-DRI per mg?
The lowest FOXO4-DRI price PepAssess found is $6.26/mg at Alpha Peptides; the median across vendors is $16.90/mg (as of November 12, 2026). Among vendors with a lab-confirmed FOXO4-DRI report, the lowest is $15.00/mg at Zesty Rat. Prices come from each vendor's own store and exclude shipping and discounts.
FOXO4-DRI cost per week
What one 10 mg vial of FOXO4-DRI costs per week of research, at the lowest one-vial price with a coupon code: $56.37 at Alpha Peptides (code PEPASSESS, $5.64/mg), as of November 12, 2026.
| One vial used over | Cost per week |
|---|---|
| 2 weeks | $28.18 |
| 4 weeks | $14.09 |
| 8 weeks | $7.05 |
Lab-confirmed FOXO4-DRI reports
3 of 12 sellers publish a FOXO4-DRI lab report. 3 have one the testing lab confirmed on its own records; 0 of those cover both purity (HPLC + mass-spec identity) and toxicity (endotoxin or sterility). Those covering both are listed first, then by Evidence Score.
| # | Vendor | Doses (mg) | From | Best $/mg | Evidence score ⓘ | |
|---|---|---|---|---|---|---|
| 1 | 10 | — | — | 100score | Shop | |
| 2 | 10 | from $217.50 ↗ | $21.75/mg | 99score | Shop | |
| 3 | 10 | from $179.99 ↗ | $18.00/mg | 84score | Shop | |
| 4 | 10, 20 | — | — | 83score | Shop | |
| 5 | 10 | from $62.63 ↗ | $6.26/mg | 87score | Shop | |
| 6 | 10 | from $199.99 ↗ | $20.00/mg | 89score | Shop | |
| 7 | 10 | from $149.99 ↗ | $15.00/mg | 75score | Shop | |
| 8 | 10 | — | — | 79score | Shop | |
| 9 | 10 | from $169 ↗ | $16.90/mg | 15score | Shop | |
| 10 | — | from $179.99 ↗ | $18.00/mg | 99score | Shop | |
| 11 | 10 | from $94.90 ↗ | $9.49/mg | 63score | Shop | |
| 12 | 5 | from $77.40 ↗ | $15.48/mg | 77score | Shop |
Prices come from each vendor's own public store data and may exclude shipping, discounts or bulk pricing. Research-use products; not medical advice.
About FOXO4-DRI
What it is
FOXO4-DRI is a modified version of part of the FOXO4 protein, built from D-amino acids in reverse order (a 'D-retro-inverso' design) so enzymes break it down slowly, plus a sequence that lets it enter cells. It was described in a 2017 Cell paper. The aim is to kill senescent cells, damaged cells that stop dividing but stay in tissues. All the findings below come from cells and animals. The idea behind senolytics is that clearing such cells may reduce age-related tissue decline, and FOXO4-DRI is one of several compounds being tested for that purpose in animals.
How it works
- Senescent cells rely on FOXO4 binding to the tumor-suppressor p53 to keep p53 inside the nucleus and stay alive.
- FOXO4-DRI competes with FOXO4 for p53, which pushes p53 out of the nucleus and triggers apoptosis (programmed cell death) in senescent cells.
- Structural work (Nat Commun, 2025) shows it binds a flexible region of p53, and that p53 phosphorylation strengthens the binding.
- p53 is a tumor-suppressor protein, which is why interfering with it is a sensitive target and why safety questions remain open.
The compounds listed on this page are for research purposes only, not for human consumption. Not medical advice.
FOXO4-DRI: more questions people ask
Which FOXO4-DRI vendors have lab reports confirmed by the testing lab?
3 as of November 12, 2026. They include Myoasis Labs, Ouralus and Zesty Rat. PepAssess matches each report to the issuing lab's own public record, not the vendor's copy.
How can I tell if a FOXO4-DRI certificate of analysis (COA) is real?
Look the report up in the testing lab's own records — most labs that test peptides publish a lookup by report ID, QR code or lot number. PepAssess does this for every FOXO4-DRI report it finds: as of November 12, 2026, 3 of the 3 sellers publishing a FOXO4-DRI report had one the lab confirmed.
How much does a vial of FOXO4-DRI cost?
As of November 12, 2026, a 10 mg vial of FOXO4-DRI costs a median $225 across the 122 sellers PepAssess found with one in stock (lowest $58); a 15 mg vial, a median $255 across 5 sellers (lowest $100). Each seller's lowest in-stock price for that size counts once; prices come from each seller's own store and exclude shipping and discounts.
Can you buy FOXO4-DRI as a nasal spray?
Yes. As of November 12, 2026, 159 of the 12 FOXO4-DRI sellers PepAssess lists sell a vial; 1 a nasal spray. Counts come from each store's own product names. A lab report covers the product and batch it names — check that it's for the form you're buying.
How do I know if a FOXO4-DRI seller is legit?
Check what the seller can show. As of November 12, 2026, PepAssess checks every FOXO4-DRI seller for three things: a FOXO4-DRI lab report that the testing lab confirms on its own records (3 of 12), card payments, which let you dispute a charge (11 of 12), and a published street address — not a mailbox or registered agent (5 of 12). Each seller's PepAssess profile shows which of these it has.
Are there FOXO4-DRI coupon codes?
Yes. PepAssess lists coupon codes for 12 vendors selling FOXO4-DRI: BioLongevity Labs: PEPASSESS (15% off), Myoasis Labs: pepassess (20% off), Glow Peptides: PEPASSESS (10% off), Peptide Giants: pepassess (5% off), Alpha Peptides: PEPASSESS (10% off), Rebirth Labs: PEPASSESS (10% off) and 6 more.
CertaPeptides products are for research use only and not for human consumption.