As for this invention, when taking in, in detail, as for the constituent of this invention, the elastin protein, it features that 1 genera or more which are chosen from the group which consists of hyaluronic acid and vitamin C furthermore are contained in collagen peptide in regard to the constituent for the skin beauty care improvement oral which shows the wrinkle improvement and the wrinkle generation depression effect of the skin. Especially, collagen peptide, the elastin protein, the constituent which is contained simultaneously in the proportion which hyaluronic acid and vitamin C is optimized when taking in not only there is no side effect, to promote the collagen biosynthesis of the skin true cortex maximally in the human body with this invention, being superior in living body survival rate, at the same time because it shows the wrinkle generation depression effect and elasticity maintenance or the improvement and dry improvement effect of the skin, it can be used for the usefulness as a healthy functional food for preventing the skin beauty care increase and the skin aging.本発明は、摂取時に、皮膚のしわ改善及びしわ生成抑制効果を示す経口用皮膚美容改善用組成物に関し、より詳細には、本発明の組成物は、コラーゲンペプチドにエラスチンタンパク質、ヒアルロン酸及びビタミンCよりなる群から選択された1種以上をさらに含有することを特徴とする。特に、本発明によってコラーゲンペプチド、エラスチンタンパク質、ヒアルロン酸及びビタミンCを最適化された割合で同時に含有している組成物は、摂取時に人体に副作用がないだけでなく、皮膚真皮層のコラーゲン生合成を最大に促進し、生体残存率に優れていて、且つ皮膚のしわ生成抑制効果と弾力維持あるいは改善、乾燥改善効果を示すので、皮膚美容増進と皮膚老化防止のための健康機能食品として有用に使用されることができる。