Biotene H-24 is a complete system of hair care especially designed to help hair look and feel thicker and healthier. These highly effective products contain the finest natural ingredients scientifically combined to give hair fullness, strength, body and shine. Biotene H-24 Shampoo makes your hair thicker & fuller naturally. It is a rich shampoo containing biotin, keratin protein, nucleic acids and cysteine that nourishes hair and scalp and encourages thicker hair with increased body and strength.