The unit is used liquidy; which is the only one in the world completely made of water-soluble natural ingredients. The result is maximum anti-aging and moisturizing effect. The active principle is based on the natural, respect of hyaluronic acid and strong antioxidants lipoic acid and coenzyme Q10, which helps delay skin aging. YVY® can use feels many times as you want. YVY® is a complete nutrition and hydration throughout the day.