--- title: "NAC vs MOTS-c: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/nac-vs-mots-c description: "Compare NAC vs MOTS-c 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) # NAC vs MOTS-c Side-by-side comparison of NAC and MOTS-c: mechanism, half-life, dose range, safety profile, and vendor pricing. NAC from $49.99 MOTS-c from $44.99 ## Price snapshot ### 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 ### MOTS-c Current low $44.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ## 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) ## MOTS-c MOTS-c (Mitochondrial ORF of the Twelve S rRNA type-c) is a 16-amino-acid mitochondrial-derived peptide — a member of a recently discovered class of small peptides encoded in mitochondrial DNA rather than nuclear DNA. It… **Lowest listed price:** $44.99 across 8 listings Full MOTS-c profile (https://www.bodyhackguide.co/compound/mots-c) ## Side-by-side comparison | Attribute | NAC | MOTS-c | | --- | --- | --- | | Category | Antioxidants | Longevity & Cellular Health | | Research Stage | Preclinical | Preclinical | | Mechanism of Action | 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)… | A New Class of Signaling Molecule MOTS-c belongs to the mitochondrial-derived peptides (MDPs) - a class of small peptides encoded within mitochondrial DNA open reading frames that were historically thought to encode only ribosomal RNAs. The known MDPs include:… | | Half-Life | — | ~4–6 hours | | Typical Dose Range | — | 5,000–10,000 mcg (5–10 mg) per injection | | Dosing Frequency | — | 2-3 times per week | | Administration | — | Subcutaneous, Intramuscular | | Side Effects | 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… | Reported Effects (limited human data) - Injection site reactions — Mild erythema, transient itching at SC injection site. Site rotation minimizes. Probably the single most reported issue. - Transient fatigue — Some users report mild fatigue in the first week… | | Molecular Weight | — | 2174 Da | | Common Vial Sizes | — | 5mg, 10mg | ## Price tracking Tracking NAC prices since September 5, 2026. Trend chart unlocks once we have price snapshots from more than one day. ## Price History 4 data points - OF - BM - Half Nattys - Ion Peptide - BHG Labs ### NAC: potential benefits - No structured benefit list published. ### MOTS-c: potential benefits - Insulin sensitivity - Exercise mimicry - Metabolic health - Anti-aging - Fat oxidation - Longevity ## Frequently asked ### What's the difference between NAC and MOTS-c? 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…. MOTS-c is a longevity & cellular health that a new class of signaling molecule mots-c belongs to the mitochondrial-derived peptides (mdps) - a class of small peptides encoded within mitochondrial dna open reading frames that…. The two differ in mechanism, half-life (not reported vs ~4–6 hours), and typical dose range. ### Which has the longer half-life, NAC or MOTS-c? NAC has a half-life of not reported. MOTS-c has a half-life of ~4–6 hours. Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Which is cheaper, NAC or MOTS-c? Lowest listed price on BodyHackGuide: NAC from $49.99, MOTS-c from $44.99. 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 NAC and MOTS-c? Stacking depends on mechanism overlap, safety profile, and goals. NAC and MOTS-c 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. NAC prices: https://www.bodyhackguide.co/compound/nac?tab=prices MOTS-c prices: https://www.bodyhackguide.co/compound/mots-c?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy NAC or MOTS-c 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 MOTS C vs SS-31: https://www.bodyhackguide.co/compare/mots-c-vs-ss-31 Methylene Blue vs MOTS C: https://www.bodyhackguide.co/compare/methylene-blue-vs-mots-c MOTS C vs NMN: https://www.bodyhackguide.co/compare/mots-c-vs-nmn 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). 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