N-Acetyl-L-Cysteine

Benefits and Features

A safe, effective derivative of cysteine to promotes healthy lung tissue and respiratory function, as well as supports glutathione production to support cellular antioxidant protection and detoxification.^†

Detail Overview

N-Acetyl-L-Cysteine (NAC) is a dietary amino acid derivative of L-cysteine.^† NAC has a high affinity for lung tissue, which supports lung function by acting as a mucolytic and antioxidant.¹ NAC's sulfur content allows it to disrupt disulfide bonds within the mucus, thinning and easing expulsion.²  Because NAC is a free radical scavenger, it promotes epithelial cell health and cilia activity in the respiratory tract.^†3 NAC is also a precursor to the antioxidant glutathione, and supplemental NAC raises glutathione levels in tissues.⁴ Lymphocytes, which are essential components of the immune system, rely on glutathione to function properly. Tissues enriched with glutathione provide overall antioxidant protection and aid in the maintenance of a healthy immune response.^†5 NAC supplementation for six months improved upper respiratory tract and immune system health, according to a multicenter, randomized, double-blind trial with 262 participants.⁶ A recent meta-analysis of eight double-blind, placebo-controlled trials added to the evidence that NAC can help with respiratory tract health.^†7