Solgar L-Arginine 500mg contains Arginine, one of the twenty classic amino acids involved in various pathways throughout the body. 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 body\'s need for the non-essential amino acids either through diet or supplementation. Foods that increase amino acid intake are meat, beans, cheese and eggs. Arginine is a non-essential amino acid, and although it can be created by the body, some groups of people can benefit from an increased intake. It is popular with athletes because of its essential role in muscle metabolism, helping the transport, storage and excretion of nitrogen. It also assists with generation and regeneration of tissue and is highly concentrated in the skin and connective tissues. Solgar L-Arginine 500mg is to be taken in a one a day easy to take vegetable capsule. All Solgar products meet our industry recognized \"Gold Standard\" for excellence. Made using naturally sourced ingredients and innovating since 1947, Solgar is your perfect supplement to good health - 98% of Solgar consumers recommend the brand