SOLGAR L-Lysine 1000mg is a Sulfur amino acid with antioxidant properties. Important for the synthesis of keratin, a protein found in the skin, hair and nails. As part of glutathione protects the liver and improves liver detoxification and cells. Also bind heavy metals thus helping in the elimination, may prevent the oxidation of LDL cholesterol and helps eliminate mucus. Recommended by the literature to be combined with three times the amount of vitamin C.