PROBLEM TO BE SOLVED: To provide a method for extracting a skin care material other than cocoon protein with strong skin osmotic force, from a cocoon, and to provide the skin care material derived from a cocoon.SOLUTION: In a method for extracting a skin care material from a cocoon, under the condition of a water temperature higher than a freezing point and lower than a boiling point, in water of PH 9-10, for example alkaline electrolytic water, a silkworm raw cocoon is immersed for 48-96 hours, so that a conventionally unknown skin care material is extracted.COPYRIGHT: (C)2015,JPO&INPIT【課題】繭から、繭タンパク以外の、皮膚への浸透力が高いスキンケア素材を抽出する方法、及び、繭由来のスキンケア素材を提供する。【解決手段】水温が氷点を超え沸点未満の条件で、PH9-10の水、例えばアルカリ電解水に、蚕の生繭を48時間-96時間浸漬することによって、従来知られていなかったスキンケア素材を抽出する、繭からのスキンケア素材抽出方法。【選択図】図1