Chicnutrix Bounce Hair Recovery Complex, Biotin, Selenium Effervescent Tablet is a complete hair food formulated with a unique 100% vegan hair recovery complex of amino acids that helps support the nourishment of hair with essential nutrients like biotin and selenium makes the healthy and bouncy hair. Hair is made up of keratin, a protein synthesized by cells inside the root, or hair follicle. Proteins are made up of individual amino acids and biotin helps the body with the production of amino acids. Amino acids strengthen and improve hair texture. Biotin helps stimulate hair growth. Key Ingredients: L-Leucine L-Glutamine L-Threonine L-Lysine hydrochloride L-Ornithine L-Arginine L-Proline L-Histidine L-Serine L-Carnitine L-Isoleucine L-Valine L-Citrulline L-Phenylalanine L-Tyrosine L-Methionine L-Glycine Taurine L-Glutathione L-Tryptophan Vitamin B7 (Biotin) Sodium selenite equivalent to elemental selenium