NAC 600 mg

NAC 600 mg
  • Gluten Free
  • Non-GMO
  • Vegetable Caps

Provides N-Acetyl-l-Cysteine, a versatile amino acid

  • Enhances glutathione production
  • Provides mucolytic and antioxidant action
  • Promotes homocysteine metabolism
  • Supports healthy lung tissue

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Product Information Sheet (PDF)

Patient One NAC supplies 600 mg per capsule of the amino acid N-Acetyl-l-Cysteine, a precursor to glutathione, the body's most powerful antioxidant which is known for diverse clinical uses.

NAC is recognized as an effective means of increasing circulating levels of glutathione in the body. As such, NAC supports the clearing of environmental toxins and pollutants and provides protection from normal exposure to heavy metals. 

NAC supports respiratory and immune health by promoting normal mucus viscosity. It is commonly used to help clear sinus and airway congestion caused by mucus overproduction. Because of its sulfur content, NAC is able to disrupt disulfide bonds, thinning the mucus so that mucus, together with any trapped unwanted particles, can be more easily expelled from the lungs. 

A source of the amino acid l-cysteine, NAC is believed to hinder homocysteine formation at plasma protein binding sites while encouraging efficient elimination of homocysteine via urinary excretion. 


  1. Keogh JP, Steffen B, Siegers CP. Cytotoxicity of heavy metals in the human small intestinal epithelial cell line I-407: the role of glutathione. J Toxicol Environ Health. 1994 Nov;43(3):351-9. [PMID: 7966443]
  2. Ottenwalder H, Simon P. Differential effect of N-acetylcysteine on excretion of the metals Hg, Cd, Pb and Au. Arch Toxicol. 1987 Jul;60(5):401-2. [PMID: 3662815]
  3. Krinsky DL, LaValle JB, Hawkins EB, et al. Natural Therapeutics Pocket Guide. 2nd ed. Hudson (OH): Lexi-Comp; 2003.
  4. Grandjean EM, Berthet P, Ruffmann R, Leuenberger P. Efficacy of oral long-term N-acetylcysteine in chronic bronchopulmonary disease: a meta-analysis of published double-blind, placebo-controlled clinical trials. Clin Ther. 2000 Feb 22(2):209-21. [PMID: 10743980]
  5. Witschi A, et al. The systemic availability of oral glutathione. Eur J Clin Pharmacol. 1992;43:667-9. [PMID: 1362956]
  6. Atkuri KR, Mantovani JJ, Herzenberg LA, et al. N-Acetylcysteine—a safe antidote for cysteine/glutathione deficiency. Curr Opin Pharmacol. 2007 Aug;7(4):355-9. Review. [PMID: 17602868]

Supplement Facts

Serving Size: 1 capsule
Servings Per Container: 90
Amount Per Serving % Daily Value**
N-Acetyl-L-Cysteine 600 mg
† Daily Value not established.
** Daily Values are based on a 2,000 calorie per day diet.

Suggested Use

Take 1 capsule 1 to 3 times daily as a dietary supplement, between meals, or as directed by your health practitioner. Store in a cool, dry place.


If you are pregnant, nursing, or taking any medications, consult your health practitioner before use. Discontinue use and consult your health practitioner if any adverse reactions occur. Keep out of reach of children. Use only if safety seal is intact.

NAC 600 mg Label