Instantly feel & see relief from dandruff through the Regulation System with Octopirox, Zinc Pyrithione & Hydro Lime Extract combined with the Instant Microfluid Technology. Mild cleansing to eliminate dandruff from the first usage. Goldwell Dual Senses Scalp Specialist Anti-Dandruff Shampoo regulates the scalp & prevents new dandruff. Skin compatibility dermatologist approved. Directions: