The present invention relates to a cosmetic composition containing, as an active ingredient, an ester oil obtained by the bonding and esterification of amyl alcohol or an isomer thereof and a fatty acid derived from a natural vegetable oil such as olive oil or coconut oil. According to the present invention, the ester oil of the present invention increases the viscosity and imparts stability to cosmetics while also having a far better moisturising ability and a lighter feeling in use than silicone oil, and the invention therefore allows a naturally derived ester oil, which is relatively friendly to the human body, to be used as a fundamental base component of a pharmaceutical composition, in complete or partial substitution for silicone oil which has been used on account of the shortcomings of existing synthetic ester oils.La présente invention porte sur une composition cosmétique contenant, comme ingrédient actif, une huile dester obtenue par la liaison et lestérification dalcool amylique ou dun isomère de celui-ci et dun acide gras issu dune huile végétale naturelle telle que lhuile dolive ou lhuile de coco. Conformément à la présente invention, lhuile dester de la présente invention augmente la viscosité et confère une stabilité aux cosmétiques tout en ayant également une capacité dhydratation bien meilleure et une sensation plus légère en utilisation quune huile de silicone, et linvention permet ainsi à une huile dester dorigine naturelle, qui est relativement respectueuse du corps humain, dêtre utilisée comme constituant de base fondamental dune composition pharmaceutique, en substitution complète ou partielle dune huile de silicone qui a été utilisée en raison des lacunes des huiles dester de synthèse existantes.본 발명은 아밀 알코올 또는 그 이성질체와 올리브 오일, 코코넛 오일과 같은 천연 식물성 오일에서 유래된 지방산을 결합하여 에스테르화시킨 에스테르유를 유효성분으로 함유하는 화장료 조성물에 관한 것이다. 본 발명에 따르면, 본 발명의 에스테르유는 실리콘유보다 보습력이 뛰어나고 사용감이 가벼우면서도 화장료의 점도를 상승시켜 안정성을 부여하므로, 기존 합성 에스테르유의 단점 때문에 상용화된 실리콘유를 완전히 또는 일정 부분 대체하여 보다 친인체적인 자연