Solgar NAC 600 mg is one of Solgars 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. A suboptimal intake of the essential amino acids increases the bodys need for the non-essential amino acids either through diet or supplementation. Foods that increase amino acid intake are meat, beans, cheese and eggs.