The subject provides skin photoaging prevention agents. Coating with UV scatterers or UV absorbers, etc. not only directly scatters or absorbs UV rays on the skin surface, but also normalizes the defense function of skin cells inside the skin, providing skin light that can fundamentally prevent skin photoaging caused by UV rays Aging preventive agent. Solution: A photo-aging preventive agent containing perilla oil, flaxseed oil, linseed oil, perilla seed oil, chia seed oil, and Inca fruit oil (Sacha Inchi oil) or green nuts oil (green nuts oil) α-linolenic acid derivative as an active ingredient； this photoaging preventive agent inhibits the collagen (collagen) of human dermal fibroblasts ) The production volume is reduced and can be used as a functional cosmetic.課題提供皮膚的光老化預防劑。塗覆紫外線散亂劑或紫外線吸收劑等，不僅在皮膚表面使紫外線直接散射或吸收，在皮膚內部使皮膚細胞的防禦功能正常作用，提供能從根本上預防紫外線引起的皮膚光老化之皮膚光老化預防劑。解決方法光老化預防劑，含有存在於紫蘇油（perilla oil）、亞麻仁油（flaxseed Oil、linseed oil）、紫蘇籽油（perilla seed oil）、奇亞籽油（chia seed oil）、印加果油（Sacha Inchi oil）或綠核果油（green nuts oil）中的α-次亞麻油酸衍生物作為有效成分；此光老化預防劑，抑制人類真皮纖維母細胞（human dermal fibroblasts）的膠原蛋白（collagen）生成量降低，可以應用作為功能性化妝品。
