OverviewA Dietary Supplement to Support Brain Function and Muscle Metabolism21 Individual Crystalline Free-Form Amino AcidsNot a Predigested ProteinGluten FreeWe pledge total truth in labeling. Our family of products contains only the purest and most potent ingredients. Guaranteed.A high quality amino acid formulation. Amino 21™ is a scientifically formulated combination of 21 crystalline, free-form amino acids in the natural L-configuration. Because free-form amino acids are readily bioavailable and require no digestion by the body, they can be absorbed efficiently into the bloodstream and accompanying tissues where they are used for cellular regeneration.