Support liver detoxification and respiratory health with this glutathione precursor N acetyl cysteine (NAC) is the most effective oral precursor to glutathione, the body's master antioxidant and primary detoxification molecule. Each capsule provides 375mg of NAC in a vegetarian capsule. NAC works by donating the amino acid cysteine, which is the rate limiting building block in glutathione synthesis. Supplementing NAC directly increases intracellular glutathione levels, supporting the liver's ability to neutralise toxins, free radicals and metabolic waste products.Beyond glutathione production, NAC has specific evidence for respiratory health (it thins mucus and supports lung antioxidant defences), liver support (it is well studied for its role in supporting liver glutathione, demonstrating its hepatoprotective potency), immune function, and emerging evidence for mood and obsessive compulsive symptoms through its effect on glutamate modulation in the brain. NAC is also one of the most studied supplements for supporting healthy ageing, as glutathione levels decline significantly with age. Key benefits: Support glutathione the master antioxidant Liver detox and respiratory support Cell support from environmental damage Each capsule contains: Amount %NRV* N-Acetyl Cysteine 375 mg † † Nutrient Reference Value (NRV*) not established N.Acetyl Cysteine, Cellulose Hydroxypropyl Methylcellulose (capsule). Directions for use:Take 1 capsule per day with food.For general antioxidant and detoxification support, 1 capsule daily (375mg) provides a solid maintenance dose. For respiratory support, liver health or more intensive antioxidant needs, the dose can be increased to 2 capsules daily (750mg).NAC works particularly well when paired with direct glutathione supplementation (providing both the precursor and the end product) and with vitamin C (which helps recycle glutathione back to its active reduced form). If using NAC alongside other supplements, no specific timing separations are needed. Take with food for best tolerability.