N-Acetylcysteine

N-Acetylcysteine and 13 near-identical products are sold under 11 different brand names — a near-twin Formula Twins cluster.

Product	Brand
N-Acetylcysteine	Douglas Laboratories
Lung, Bronchial & Sinus Health	Natural Factors
NAC Enhanced	Allergy Research Group
NAC Enhanced Antioxidant Formula	NutriCology
NAC N-Acetyl-L-Cysteine	NutriCology
NAC Renew	Nutri-West
N-Acetyl Cysteine	Nature's Sunshine
Lung, Bronchial & Sinus Health	Natural Factors
NAC 1,000 mg	LuckyVitamin
NAC N-Acetyl-Cysteine 1000 mg	Protocol For Life Balance
N-Acetyl Cysteine 600 mg	Source Naturals
NAC N-Acetyl-L-Cysteine	Allergy Research Group
N-A-C Sustain 600 mg	Jarrow Formulas
NAC 1000 mg	NOW