--- title: "FOXO4-DRI vs NAC: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/foxo4-dri-vs-nac description: "Compare FOXO4-DRI vs NAC side by side. We earn a commission on some vendor links. Mechanism, half-life, dose range, side effects and prices. NAC from $49.99." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) # FOXO4-DRI vs NAC Side-by-side comparison of FOXO4-DRI and NAC: mechanism, half-life, dose range, safety profile, and vendor pricing. FOXO4-DRI from $119.00 NAC from $49.99 ## Price snapshot ### FOXO4-DRI Current low $119.00 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ### NAC Current low $49.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ## FOXO4-DRI FOXO4-DRI is a synthetic 34-amino-acid D-retro-inverso peptide designed to disrupt the interaction between the FOXO4 transcription factor and p53, with the specific goal of inducing apoptosis selectively in senescent… **Lowest listed price:** $119.00 across 4 listings Full FOXO4-DRI profile (https://www.bodyhackguide.co/compound/foxo4-dri) ## NAC N-acetylcysteine (NAC) is the acetylated form of the amino acid L-cysteine — a small thiol-containing molecule that serves as a rate-limiting precursor for glutathione (GSH) synthesis and, independently, as a direct… **Lowest listed price:** $49.99 across 1 listing Full NAC profile (https://www.bodyhackguide.co/compound/nac) ## Side-by-side comparison | Attribute | FOXO4-DRI | NAC | | --- | --- | --- | | Category | Recovery | Antioxidants | | Research Stage | Preclinical | Preclinical | | Mechanism of Action | FOXO4-DRI works by disrupting the protein-protein interaction between FOXO4 (Forkhead box O4) and p53 in senescent cells, which releases p53 from nuclear sequestration and allows it to translocate to the mitochondrial outer membrane where it triggers the… | NAC's mechanism of action operates through at least four distinct but overlapping pathways, and understanding which pathway dominates in a given clinical context is essential for predicting whether supplementation will actually help. The four pathways are (1)… | | Half-Life | Not established in humans; no published human pharmacokinetic data. The D-retro-inverso construction confers resistance to human proteases, which in preclinical models extends the in vivo half-life from minutes (typical for comparable L-amino-acid peptides) to hours ([Baar et al., 2017](https://pubmed.ncbi.nlm.nih.gov/28340339/)). | — | | Typical Dose Range | No validated human dose. Self-report: 2-15 mg SC per dose (typically 5 mg), pulsed 3-7 days every 2-6 months; no human PK data. The 5 mg/kg figure seen in some sources is a mouse research dose (Baar 2017), not a human dose. | — | | Dosing Frequency | — | — | | Administration | — | — | | Side Effects | The side effect profile of FOXO4-DRI in humans is not documented because no clinical trials have been conducted. Rodent studies from the Baar et al. 2017 publication and subsequent work report generally acceptable tolerability at doses producing senolytic… | NAC has one of the most favorable safety profiles in medicine when dosed appropriately and used for appropriate indications. Side effects are almost entirely gastrointestinal at oral therapeutic doses and anaphylactoid at high IV infusion rates; true allergic… | | Molecular Weight | 3587.0 g/mol | — | | Common Vial Sizes | — | — | ## Price History 4 data points - Half Nattys - Ion Peptide - Disguised Alpha - LB ## Price tracking Tracking NAC prices since September 5, 2026. Trend chart unlocks once we have price snapshots from more than one day. ### FOXO4-DRI: potential benefits - Selective senescent cell clearance - Potential reversal of aging markers - Reduced chronic inflammation - Improved tissue function - Hair regrowth (animal studies) - Organ rejuvenation potential ### NAC: potential benefits - No structured benefit list published. ## Frequently asked ### What's the difference between FOXO4-DRI and NAC? FOXO4-DRI is a recovery that foxo4-dri works by disrupting the protein-protein interaction between foxo4 (forkhead box o4) and p53 in senescent cells, which releases p53 from nuclear sequestration and allows…. NAC is a antioxidants that nac's mechanism of action operates through at least four distinct but overlapping pathways, and understanding which pathway dominates in a given clinical context is essential for…. The two differ in mechanism, half-life (Not established in humans; no published human pharmacokinetic data. The D-retro-inverso construction confers resistance to human proteases, which in preclinical models extends the in vivo half-life from minutes (typical for comparable L-amino-acid peptides) to hours ([Baar et al., 2017](https://pubmed.ncbi.nlm.nih.gov/28340339/)). vs not reported), and typical dose range. ### Which has the longer half-life, FOXO4-DRI or NAC? FOXO4-DRI has a half-life of Not established in humans; no published human pharmacokinetic data. The D-retro-inverso construction confers resistance to human proteases, which in preclinical models extends the in vivo half-life from minutes (typical for comparable L-amino-acid peptides) to hours ([Baar et al., 2017](https://pubmed.ncbi.nlm.nih.gov/28340339/)).. NAC has a half-life of not reported. Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Which is cheaper, FOXO4-DRI or NAC? Lowest listed price on BodyHackGuide: FOXO4-DRI from $119.00, NAC from $49.99. Prices are pulled from the vendor listings tracked on BHG and change frequently. See the compare tables on each compound page for the current set of offers. ### Can you stack FOXO4-DRI and NAC? Stacking depends on mechanism overlap, safety profile, and goals. FOXO4-DRI and NAC should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds. ## See current vendor prices Listings from the vendors we track. Prices change often, so check the vendor before you buy. FOXO4-DRI prices: https://www.bodyhackguide.co/compound/foxo4-dri?tab=prices NAC prices: https://www.bodyhackguide.co/compound/nac?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy FOXO4-DRI or NAC Check the vendor trust score. Every supplier we track is rated 0-100 on COA verification, payment transparency, shipping, reviews, and listings: one published, reproducible methodology, applied to every vendor. View Vendor Scorecard (https://www.bodyhackguide.co/vendors/scorecard) ## Related comparisons NAC vs Glutathione: https://www.bodyhackguide.co/compare/nac-vs-glutathione **Research use only.** BodyHackGuide is a research and price-comparison reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. Prices shown are pulled from vendor listings tracked on BHG and are subject to change. Every vendor is ranked on the same public, reproducible methodology. See editorial standards (https://www.bodyhackguide.co/editorial-standards) and affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). BodyHackGuide (https://www.bodyhackguide.co/) Your biohacking research hub: compound pricing, brain health protocols, dosing tools, and vendor reviews. support@bodyhackguide.co Join our Discord: https://discord.gg/Mhq5UdRYBA r/BodyHackGuide on Reddit: https://reddit.com/r/BodyHackGuide **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology). Full details in our affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). **Research Disclaimer:** All compounds listed are for laboratory and research purposes only. Not for human consumption. This site does not sell or ship any products. Always consult a qualified healthcare professional and comply with local regulations. © 2026 BodyHackGuide. 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