Washed your hair yesterday and roots already greasy? Discover NEW Elvive Hydra Pure 72h Purifying Shampoo by L'Oréal Paris! Inspired by skincare, our formula is powered with Salicylic Acid, which helps remove excess oil and impurities & Hyaluronic Acid for a boost of moisture. The result? Get up to 72h of a purified scalp & hydrated lengths1 without stripping natural moisture and no weigh down. Grease or oil is totally natural and helps to moisturise your hair and scalp. However, it is important to regularly wash your hair to prevent excess build up. Our purifying shampoo is scientifically designed to bind to the excess oil and wash it away whilst maintaining natural moisture. Our formula is effective on all hair types and silicone-free for a natural touch. 1Consumer test on 59 users, 72h after use of the serum + shampoo + conditioner.