Aging and scarring of the therapeutic agent of the skin

The present invention, sufficient preventive or therapeutic agent and effects can exhibit skin aging, and to provide a skin scar treatment agents. Characterized by intradermal or subcutaneous administration, therapy for treating aging of skin, and preventing and treating skin aging containing a bFGF, characterized by intradermal or subcutaneous administration, the scars of the skin for, utilizing a treating skin scar containing a bFGF. Aforementioned aging as eg skin skin wrinkles, age spots, sagging, rough, thinning, skin viscoelasticity, such can be favorably exemplified reduced, e.g. keloid as scars of the foregoing, hypertrophic scars, scarring contracture, etc. it can be preferably exemplified.