The present invention relates to the use of caprolol-alanine ethyl ester as a penetration enhancer, in particular as a penetration enhancer in a cosmetic composition or other topical composition, the cosmetic composition comprising the penetration enhancer as an active ingredient, In particular, in combination with UV filters, anti-acne active agents, anti-aging active agents, anti-inflammatory agents, hair conditioning agents, antiperspirants or deodorants, whitening agents, self-tanning agents and / or vitamins. [Selection figure] None本発明は、浸透促進剤、特に、化粧品組成物又は他の局所用組成物における浸透促進剤としてのカプリロール-アラニンエチルエステルの使用に関し、化粧品組成物は、この浸透促進剤を、活性成分、特に、UVフィルター、抗ざ瘡活性剤、抗老化活性剤、抗炎症剤、毛髪調節剤、制汗剤又は脱臭剤、美白剤、セルフタンニング剤及び/又はビタミン類と組み合わせて含む。【選択図】なし