| abstract |
[PROBLEMS] To contain an active ingredient having an excellent damage recovery effect on skin (including scalp) and hair damaged by ultraviolet rays and the like, and having excellent biosafety for skin (including scalp). An object of the present invention is to provide a skin external preparation, a hair restorer and a hair quality improving agent. [MEANS FOR SOLVING PROBLEMS] The present invention relates to an antioxidant, an external preparation for skin, a hair restorer, and a hair quality improving agent containing hyaluronic acid having a reduced molecular weight or a salt thereof as an active ingredient, wherein the active ingredient has peroxidation. It has a whitening effect and an acne improvement effect, or a hair growth effect and a hair quality improvement effect due to antioxidation such as lipid suppression action. [Selection figure] None |