Thalgo's Purete Marine Absolute Purifying Mask is rich in absorbent clay, combined with astringent Witch Hazel, to remove sebum and impurities. Formulated with Fucus spiralis and Tetraselmis chui, which is highly concentrated in zinc thanks to a specific process of bio-accumulation, this mask acts on the cells that produce excess sebum. For a fresh, clear skin in just 10 minutes use Purete Marine Absolute Purifying Mask.