PROBLEM TO BE SOLVED: To provide a cosmetic composition containing at least one kind of extract from an orchid of Dendrobium chrysotoxum as an active agent, and at least one kind of cosmetically-acceptable additive.SOLUTION: This invention relates to an extract from the orchid of Dendrobium chrysotoxum as an active agent for preventing or delaying the appearance of the signs of skin ageing, for delaying or attenuating the effect thereof, or for promoting cell or tissue lifetime. The invention also relates to a cosmetic composition for inhibiting appearance and/or activity of mitochondria protein Smac/DIABLO.【課題】活性剤としてのデンドロビウム・クリソトキサムのランからの少なくとも１種の抽出物、及び化粧用に許容できる少なくとも１種の添加剤を含む化粧用組成物の提供。【解決手段】皮膚老化の徴候出現を予防若しくは遅延させ、又はその影響を遅らせる若しくは軽減するか、或いは細胞又は組織寿命も促進するための、活性剤としての、デンドロビウム・クリソトキサムのランからの抽出物、及びミトコンドリアタンパク質Ｓｍａｃ／ＤＩＡＢＬＯの発現及び／又は活性を阻害する、化粧用組成物。【選択図】図１
