HADA LABO Goku-jyun Perfect Gel has 5 functions: Lotion, Milk, Cream, Serum and Mask in one product. Contains Collagen which helps firm the skin and Super Hyaluronic Acid instantly hydrates your skin and provides long-lasting moisture and smoothness. HADA LABO Goku-jyun Perfect Gel should be used after washing with HADA LABO Goku-jyun Face Wash.