| abstract |
[Problem] To provide a substance for promoting collagen production related to prevention and improvement of skin aging and rough skin symptoms, and an external preparation for skin. [MEANS FOR SOLVING PROBLEMS] Geranil geraniol has been recognized to promote type I collagen production, and is a type I collagen production promoter containing this as an active ingredient, and is an external preparation for skin, which prevents skin aging and rough skin It is extremely effective for prevention, and the form of the external preparation for skin may be cream, paste, liquid, or applied to a poultice material. [Selection figure] None |