Premium Canadian NAC – Our NAC pills are manufactured here in Canada in a cGMP facility and third party tested for purity, quality, and safety. Product received NPN from Health Canada. Caution Warning – If you are taking antibiotics or nitroglycerin, do not use this product. If you are pregnant or breastfeeding or have kidney stones, consult a healthcare practitioner prior to use. Source of Antioxidant - N-acetyl cysteine provides antioxidants. Direction – Take 1 capsule per day. Each bottle contains 120 capsules that deliver 600 mg of NAC per capsule or 4 months supply!. One Potent Ingredient – Our NAC capsules contain 600mg of pure premium NAC (N-Acetyl-L-Cysteine), free from additives and encapsulated in vegetable capsules.