The Iroha masks are made in a non-woven tissue to facilitate water evaporation and a faster absorption of all actives. The hyaluronic acid is a natural molecule of the skin, well known for its moisturizing properties. It plays an important role in the formation of the extra cellular matrix and stimulates collagen syntheses. Capable of restoring 1000 times its own weight in water, it re-densifies the skin and refills wrinkles from the inside. Its benefits are well known by all medical professionals, who use it in their anti-aging treatments. All our iroha treatment masks contain natural actives and are paraben free to guarantee effective results while respecting the skin. This is the reason why the Iroha masks are suitable for all skin types. Nature: the best ally for your skin care. Each tissue mask contains 23 ml of natural actives for anti-aging intensive results, just like in a beauty salon.