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O2B NAC is a 600mg per capsule dose of N-acetyl-L-cysteine, an important amino acid and precursor for production of the body’s master antioxidant, glutathione. NAC has become extremely popular for its support of the immune system, healthy lung function and the normal clearing of mucosal lung secretions. Use NAC to support your body’s detoxification pathways, immune system, respiratory system and cardiovascular health.

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O2B NAC (N-acetyl-L-cysteine) is a well-recognised supporter of a healthy immune system, normal respiratory function, cardiovascular health and natural detoxification function. This excellent all-rounder is extremely popular at the moment due to its ability to support the immune system, detoxification, healthy lungs and the normal clearance of mucosal lung secretions.

O2B NAC provides cysteine in the form of acetylated cysteine. Acetylated cysteine is different than regular cysteine because it may protect it from stomach acid for better absorption. Cysteine is the key amino acid for producing glutathione, the body’s most important antioxidant. Glutathione helps to recycle other antioxidants like Vitamin C and E, and is considered a ‘free radical scavenger’ supporting the body’s natural protection against oxidative stress and free radical damage.

For optimal conversion from NAC to glutathione we also recommend taking O2B Magnesium, and our O2B Whey Protein powder to boost your glycine levels, another important amino acid required for glutathione production.

For those of you interested in longevity and healthy aging, we recommend combining O2B NAC with our O2B Collagen+ formulation, because it contains other key ingredients including Selenium, Vitamin E and CoQ10 to work synergistically at supporting your health on a cellular level.


  • Healthy immune system
  • Normal respiratory function
  • Cardiovascular health
  • Mental health
  • Natural detox function
  • Men’s and Women’s Health

Each capsule contains:

  • N-acetyl-L-cysteine   600mg



Wheat, gluten, corn, yeast, artificial flavours or preservatives.

DOSE: Take 1 – 2 capsules together with food per day or as directed by your healthcare practitioner.

CAUTION: If taking prescription medication, pregnant, nursing or you have known ingredient sensitivities please consult your health care professional before taking this product.

WARNING: Prolonged use is not recommended without seeking advice from your health care professional.


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