An essential branched chain amino acid

Supports healthy muscle development

Hypoallergenic

Source Naturals Free-Form L-Leucine delivers 1,500 mg of this essential amino acid in each serving. A member of the branched chain amino acid (BCAA) family, l-leucine is popular among weightlifters and athletes because of its ability to protect and nourish healthy muscle development. Contains no yeast, dairy, egg, gluten, soy, corn, wheat, sugar, salt, starch, preservatives, or artificial color, flavor or fragrance.