Natural Factors N-Acetyl-L-Cysteine - 600 mg - Bonus Size - NAC is a free form amino acid and a powerful antioxidant that has shown itself to be an effective detoxifier and a natural strengthener of the immune system. A precursor to glutathione, a key antioxidant that fights oxidative stress, maintains a healthy immune system, repairs tissues and supports overall health. Supplementing with NAC increases glutathione levels better than supplementing with glutathione itself as NAC passes into the bloodstream intact.

