A formulation of 17 naturally occurring amino acids in their free forms, including 9 essential amino acids, as well as L-5-Hydroxytryptophan (5-HTP). Contains no L-tryptophan. Dietary Considerations Preservative FreeFree of Artificial Colors/Flavors Serving Size: 2 Vegetable Capsule Servings Per Container: 50 Amount Per Serving L-5-Hydroxytryptophan 20 mgProprietary Blend: 1.363 gL-AlanineL-ArginineL-Cysteine HCIL-CystineL-GlutamineL-GlycineL-Histidine HCIL-IsoleucineL-LeucineL-Lysine HCIL-MethionineL-PhenylalanineL-SerineL-TaurineL-ThreonineL-TyrosineL-Valine Other Ingredients: Hydroxypropyl methylcellulose, microcrystalline celluloseAs a dietary supplement, 1 or 2 capsules one or three times daily between meals, or as directed by a healthcare practitioner.Keep in a cool, dry place, tightly capped.