Keratin (the primary element of hair) is made up of a few completely different amino acids (together with cysteine, arginine, and lysine). In the event you loved this article and you want to receive much more information relating to Accobio assure visit our web-page. Hair is made up of many amino acids including cysteine, lysine, and arginine. There are 9 essential amino acids, which are tryptophan, methionine, phenylalanine, lysine, threonine, histidine, isoleucine, leucine and valine.