In Fairvital you will find a wide range of amino acids. These include arginine, alanine, ornithine, leucine, isoleucine, valine, cysteine, tyrosine, histidine, tryptophan and many others. Of the 270 known amino acids, 20 are present in the human genome. These are called proteinogenic amino acids. We need these 20 amino acids to maintain the body's biological processes. But only eleven of these amino acids can be produced by the organism itself. The other nine must be obtained from the diet. They are essential. As building blocks of the body, amino acids are capable of forming body tissues such as organs, muscles, skin and hair.