Brands of Argenine, L-Methionine, L-threonine, L-Isoleucine, L-leucine, L-Phenylalanine, L-Valine, Aminoacetic acid, L-Alanine, L-Proline, L-Histidine, L-Lysine monoacetate, Acetetic acid (99%), L-Tryptophan