Ingredients of Solgar Amino 75:Each vegetable capsule of Solgar Amino 75 provides: L-Lysine (as L-Lysine HCI) 75mg L-Histadine 75mg L-Isoleucine 75mg L-Leucine 75mg L-Methionine 75mg L-Phenylalanine 75mg L-Threonine 75mg L-Valine 75mg Solgar Amino 75 is Encapsulated with these natural ingredients: microcrystalline cellulose, hydroxypropyl cellulose, magnesium stearate. Directions For Use of Solgar Amino 75: As a food supplement for adults, one (1) vegetable capsule daily with juice or water in between meals, or as directed by a healthcare practitioner. Vegetable capsule shell: hydroxypropylmethyl cellulose. CAUTION: PHENYLKETONURICS (PKU) - Solgar Amino 75 contains Phenylalanine.