Healthy Aging Supports Muscle Vitality Free Radical Scavenger Supports Cell Integrity Non-GMO A Dietary Supplement Vegetarian/Vegan Amino Acids Family Owned Since 1968 GMP Quality Assured L-Carnosine (beta-Alanyl-L-Histidine) is a dipeptide, consisting of alanine and histidine. It is naturally found in high concentrations in skin, muscles and nerve tissues and its levels are known to decrease with age. L-Carnosine protects cell and tissue structures during the aging process through it free-radical neutralizing and membrane-stabilizing functions.