A rich, natural shampoo fortified with Biotin, Keratin protein, Nucleic Acids and Cysteine to Enhance nourish the hair and scalp. Hair will look and feel thicker with added body and strength. As individual hair care needs vary, the regular shampoo in the three phase system can be replaced with Biotene H-24 coal tar-based Dandruff Shampoo or gentle Scalp Conditioning Shampoo with the same results: Thicker, fuller hair, naturally.