Thalia 2% Hyaluronic Intense Moisturizing Skin Care Serum, 30ml It is essential to use hyaluronic acid to keep skin hydrated. When applied topically, its ability to retain water forms a moisture barrier on the skin, hydrating tissues and restoring moisture lost over the course of the day. Usage guidelines: In the morning and evening, use a small amount on your face and neck after cleansing. After that, you can moisturize your skin with Thalia moisturizing cream. Caution: Keep out of children's reach. Steer clear of the eyes. for usage outside of the country. See your doctor if you experience any unexpected effects.