Alfaparf Keratin Therapy Deep Cleansing Shampoo is a professional sulfate-free formula designed for deep cleansing while protecting keratin-treated hair. This 500ml shampoo is part of the Lisse Design Bond System line, formulated to thoroughly clean without stripping or damaging the hair. The product comes in a 500ml/16.9 fl oz bottle with a soft pink color scheme. As a personal hygiene product, it should be stored at room temperature and kept out of direct sunlight. For external use only. This is step 1 in the Keratin Therapy system.