This extraxt is part of an active sebum-regulating ingredient of marine origin based precisely on the combined properties of two species of seaweed (the brown alga Fucus Sprialis and the green alga Tetraselmis Chuii), which lend it marked skin-purifying and sebum-normalizing properties. Studies have shown that this active ingredient possesses anti-inflammatory properties, prevents skin irritation, and inhibits the secretion of sebum, thereby improving the structure and overall condition of oily and impure skin, while lending it a cleaner, more natural appearance.