The Dermo-Purifying Shampoo eliminates impurities and reduces excess sebum on oily scalps. It provides an immediate sensation of freshness and allows you to space out your shampoos over time. The scalp is purified, hair regreases less quickly and regains lightness and suppleness. At the heart of the formula, sarcosine targets and limits excessive sebum production. Thanks to rosemary extraction, the scalp is rebalanced and protected against external aggressions. Dermatologically tested on oily scalps. Silicone-free.