Hyaluronic Acid 4D
Hyaluronic Acid 4D, a combination of 4 kinds of HA with different properties, can build up and form a three‐dimensional network and accurately target the different layers of the skin, to replenish water from outside and hold water from inside.  In this way skin is moisturized and hydrated completely and improves in elasticity directly from within.
*  Sodium Hyaluronate Crosspolymer for Stratum Corneum to form film, holding water inside the skin with 24hr long-lasting moisturizing.
*  Sodium Hyaluronate for Epidermis to nourish the corneum as Natural Moisturizing Factor (NMF).
*  Sodium Acetylated Hyaluronate or Super Hyaluronic Acid for Epidermis to increase skin hydration.
*  Hydrolyzed Sodium Hyaluronate for Skin Dermis to strengthen collagen and elastin.