| 摘要 |
PURPOSE: Subcritical water extracts of laminaria japonica is provided to improve an esterase inhibition activity, a collagen synthesis capability and an anti-wrinkle activity and prevent side effects by using marine algae and an aqueous solvent, thereby having a marked effect in an industrial aspect. CONSTITUTION: A cosmetic composition for wrinkle protection or wrinkle improvement includes the subcritical water extracts of laminaria japonica which are extracted with the subcritical water of 3 MPa and 180-240°C. The cosmetic composition for wrinkle protection or wrinkle improvement adds water in crushed laminaria japonica and includes the subcritical water extracts of laminaria japonica which are characterized by being extracted under 3 MPa and 180-240°C as an active ingredient. A manufacturing method of the subcritical water extracts of laminaria japonica having a wrinkle protection activity and a wrinkle improvement activity comprises: a step of manufacturing crushed laminaria japonica by pulverizing laminaria japonica; a step of adding water in the crushed laminaria japonica; and a step of manufacturing the subcritical water extract of laminaria japonica by reacting the crushed laminaria japonica with water at a condition of 3 MPa and 180-240°C. |
