Product IngredientsAmino Acid Complex (Glycine, Proline, Glutamic acid, Alanine, Arginine, Aspartic acid, Lysine, Serine, Leucine, Valine, Phenylalanine, Threonine, Isoleucine, Histidine, Tyrosine, Methionine), Vegetable Capsule Shell (Hydroxypropylmethyl Cellulose).