N-Acetyl-L-Cysteine (NAC) 600 mg Vegetable Capsules reinforces the bodys natural antioxidant support system. It is a precursor to L-Glutathione, a sulfur-containing tripeptide. * *Daily Value (DV) not established. NAC 600 mg is one of Solgar's premium-quality amino acid range products, containing N-Acetyl-L-Cysteine, an amino acid which has powerful liver detoxification qualities. Amino acids are the building blocks of protein and are needed in several internal functions of the body. They are classified as "essential" or "non-essential", with essential amino acids meaning they cannot be manufactured by the body and must be supplied in the diet to maintain good all-round health. Amino acids can be further used by the body to create hormones, enzymes, neurotransmitters, antibodies and nutrient carriers. It is recommended as a dietary supplement for adults, take one (1) vegetable capsule up to two times daily, between meals, or as directed by a healthcare practitioner. If you are pregnant, nursing, taking any medications or have any medical condition, please consult your healthcare practitioner before taking any dietary supplement. Discontinue use and consult your healthcare practitioner if any adverse reactions occur. Keep out of reach of children. Do not use if outer bottle seal is missing or damaged. Store at room temperature.