If you’re looking for a high-strength NAC option, NOW Foods NAC 1000 mg is a convenient daily supplement designed to support cellular antioxidant balance and overall wellness.
What is NAC?
N-Acetyl Cysteine (NAC) is a stable form of cysteine—an amino acid your body uses to build proteins and to help produce glutathione, one of the body’s most important antioxidant compounds. Glutathione plays a key role in protecting cells from oxidative stress and supporting normal immune balance.
Why people choose NAC
- Glutathione support: NAC is widely used as a glutathione precursor, helping maintain the body’s antioxidant defenses.
- Free-radical protection: Antioxidant support is useful for everyday lifestyle stressors (busy schedules, pollution exposure, training, etc.).
- Clean & quality-focused formula: NOW’s NAC tablets are made with a clear allergen statement and quality controls you can trust.
Quality you can feel good about
This product is Non-GMO, Vegan/Vegetarian, Halal, and Kosher, and is produced under GMP quality standards.
Supplement facts
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Serving size: 1 tablet
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N-Acetyl Cysteine (NAC): 1 g (1,000 mg)
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Daily Value (DV): Not established
Suggested use
Adults: Take 1 tablet 1 to 3 times daily.
Storage: Keep in a cool, dry place after opening.
Ingredients & allergen info
Other ingredients: Microcrystalline cellulose, hydroxypropyl cellulose, stearic acid (vegetable source), croscarmellose sodium, vegetarian coating (hypromellose, vegetable stearic acid, sunflower lecithin, triethyl citrate, sunflower oil), silicon dioxide.
Not manufactured with: wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, or sesame ingredients.
Note: Produced in a GMP facility that processes other ingredients containing these allergens.
Warnings
- For adults only.
- Consult a healthcare professional if pregnant/nursing, have a medical condition, or take medicines (especially nitroglycerin).
- Keep out of reach of children.
- Natural color variation may occur.










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