Sisley Pre-Shampoo Purifying MaskThe Pre Shampoo Purifying Mask contains a unique combination of active ingredients to purify, soothe and protect the scalp. This pre shampoo mask helps to create a healthy scalp environment by removing pollutants, impurities and product build up. It leaves the scalp feeling purified, soothed and better prepared to receive the benefits of subsequent hair care treatments. After use, the hair is visibly cleaner, softer, more supple and more luminous.