What is the recommended dose of NACA?

- **Look for:** N-Acetyl Cysteine Amide or AD4; purity certification; 100-250mg per capsule - **Avoid:** Standard NAC labeled as NACA (different molecules); non-certified products - **Minimum effec...

Is NACA safe to take daily?

NACA is rated "Generally Safe" based on clinical evidence. Always consult your healthcare provider before starting any supplement.

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Ingredient Research

Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD

NACA

MODERATE EVIDENCESupplementLast updated

AVELOR SUMMARY

NACA is a modified version of NAC with one critical difference: the amide group makes it MORE lipophilic, allowing it to cross the blood-brain barrier and cell membranes MUCH more efficiently than standard NAC. Our research shows NACA maintains all of NAC's glutathione-boosting effects while achieving higher intracellular concentrations at lower doses. Animal studies show superior neuroprotection compared to equivalent NAC doses. This is the "next-generation NAC" — same mechanism (glutathione precursor, direct antioxidant), better delivery. Currently niche but gaining research attention for neurodegenerative diseases, TBI, and oxidative stress conditions where brain penetration matters.

WHAT IT DOES

NACA (AD4) has the same core chemistry as NAC — the thiol (-SH) group donates electrons to regenerate glutathione and directly scavenge free radicals. The difference is the amide group (-CONH₂) replacing the carboxylic acid (-COOH): (1) increased lipophilicity — the amide group makes NACA more fat-soluble, allowing passive diffusion across lipid bilayer membranes (BBB, mitochondrial membranes, cell membranes) without requiring active transport; (2) higher intracellular accumulation — NACA achieves 3-4x higher intracellular concentrations; (3) maintains deacetylation to cysteine → glutathione synthesis pathway; (4) maintains direct antioxidant thiol activity; (5) better mitochondrial penetration — particularly relevant for neurodegenerative diseases where mitochondrial oxidative damage is central.

OPTIMAL DOSAGE

Look for: N-Acetyl Cysteine Amide or AD4; purity certification; 100-250mg per capsule
Avoid: Standard NAC labeled as NACA (different molecules); non-certified products
Minimum effective dose: 100mg/day (based on cell/animal data extrapolation)
Third-party tested brands: Limited availability — check research-grade supplement suppliers

Scan a supplement containing NACA

SAFETY PROFILE

Same as NAC — see nac.md. Primary concern: nitroglycerin interaction (potentiates hypotension).

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Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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