Protecting from excess oils and scalp sebum, the L’Oréal Paris Elvive Hydra Pure Exfoliating Pre-Shampoo Scalp Serum purifies and cleanses for up to 72 hours. Powered by a 6% exfoliating complex starring salicylic acid, the formula gently buffs away dead skin cells, impurities and product build-up to leave hair feeling refreshed. Suitable for all hair types and textures, the treatment resists stripping away moisture for a clarified yet soft result that’s ready for subsequent shampooing. Elvive Hydra Pure Exfoliating Pre-Shampoo Scalp Serum with Salicylic Acid, for Oily Scalp & Roots. Discover NEW Elvive Hydra Pure Oil Control Scalp Serum by L'Oral Paris! A lightweight, pre-shampoo serum that is scientifically proven to purify the scalp. Inspired by skincare, our formula is powered with a 6% gentle exfoliating complex with Salicylic Acid, which helps to control oil. The result? 96% of women agree that this serum removes residue on the scalp without stripping natural moisture. Scalp is gently cleansed of excess oil & grease, impurities, product build-up, and dead cells. Our formula is powered with a unique 6% gentle exfoliating complex with Salicylic Acid that is scientifically designed to provide a fresh-feeling and purified scalp for up to 72h. Effective on all hair types, ranging from straight, wavy, curly, and coily.