The new keratin treatment of molecular technology that instantly restores damaged hair from inside by guaranteeing strength, brilliance and shine. Sp Liquid Hair, already on the market in the 90s, was revived in the 40th anniversary of Wella System Professional, with a renewed specific composition for the nourishment of the hair, studied by Wella experts in response to the women's needs. How to use:Apply after shampoo and conditioner (at will), ontowel-dried hair. Apply hair treatment on roots and lengths dividing it into sections (4-5 sections throughout the head, a little pipe for each product section), comb from root to the end to distribute the product evenly. Comb and blow-dry your hair with a hair dryer for 5 minutes to make the keratin penetrate in depth. Rinse for 20 seconds to remove any excess product and proceed with styling.