This unique shampoo with Redensyl®, niacin and caffeine creates the conditions for stronger, fuller and denser hair. Keratin amino acids nourish hair and scalp, while green tea and natural wood extract provide antioxidant support. Use: Massage gently into wet hair for 1 to 3 minutes, lather and rinse after 2 minutes. When using with Scalp Booster, apply directly to oiled hair and scalp. Gradually add small amounts of water and lather for 2 minutes, then rinse thoroughly.