Designed specifically for thin or fine hair, this Thickening Treatment Shampoo for Men by Nanogen is an innovative, deeply nourishing shampoo which works to give your hair a thicker look and feel. Enriched with redensifying Amino Acids and purifying Salicylic Acid to give your locks more volume from the first wash, your hair will receive a deep, nourishing cleanse that will leave you feeling and smelling fresh. K.D. Enriched with Amino Acids and Salicylic Acid Gives hair more body and volume Formulated with a subtle fragrance Directions of use: Massage into your wet hair and scalp. Rinse thoroughly after around a minute. Optional: Follow with Thickening Treatment Conditioner. For best results, use every time you wash your hair.