... skin a large number of hydrophilic groups and carboxy!group outside collagen molecules,it can stay in a lot ... of moisture absorption,similar to the skin and form the structure ... ingredinet: EGF,KGF-2,Collagen,HA,ceramide,skin moisturizing factor ,hyaluronic acid and so on ... exquisite moist comfortable feel after 10days,skin rough ,dry vanishing,the skin become moist ,full,delicate , ...