| abstract |
An object of the present invention is to develop a hyaluronic acid production promoter which is effective for preventing hyaluronic acid production, improving skin roughness, imparting skin elasticity, tension and luster, and preventing skin aging such as wrinkles and tarmi. It is an object of the present invention to provide a composition which leads to beauty and maintenance of homeostasis by natural action of a living body using the same. Kind Code: A1 A collagen or gelatin degradation product of collagenase having an amino acid sequence of (Gly-XY) (wherein, Gly represents a glycine residue, and X and Y represent amino acid residues). Providing a hyaluronic acid production promoter containing a collagen peptide (Gly-XY) n (n is a positive integer) consisting of a collagen tripeptide represented by the formula: It is. [Effect] It significantly promotes hyaluronic acid production and has an effect of improving skin roughness. Further, a skin external preparation or a food or drink containing them has an effect of preventing skin aging such as imparting firmness and luster to the skin, or improving wrinkles and tarmi. |