Shampoo with alkaline PH, promotes the opening of hair scales. Purifying Shampoo removes deep chemical or environmental debris, deposited within the structure of the hair. Nourishes hydrates any hair type, in particular dried and processed. The combination of keratin and collagen creates within the structure of the hair the optimum conditions for the subsequent stages of treatment. HOW TO USE:Apply to wet hair, massage into scalp and lengths. Rinse and repeat a second application. Remove excess water, leaving your hair slightly damp, ready to receive the step 2 Keratin Mask.