Abstract: A composition for ameliorating skin condition having a collagen production promoting effect, a composition for ameliorating skin resilience, a composition for ameliorating skin wrinkles, a composition for ameliorating skin sagging, and a composition for promoting collagen production.

Abstract: A composition having hair growth and/hair restoration effect that includes plasmalogen extracted from tissues of animal such as shellfish, sea squirt, and birds, and that can be used as external preparation or oral preparation.

Abstract: It is a composition for enhancing immune function, or a composition for activating natural killer cells, comprising plasmalogen.

Abstract: Provided is a novel hair growth and hair restoration material having excellent efficacy in hair growth and hair restoration for both men and women, even when the components thereof are at ultra-dilute concentrations; the hair growth and hair restoration material being characterized in containing a sterol glucopyranoside, preferably a cholesteryl glucopyranoside, represented by general formula (I). (In the formula, Z represents a sterol residue from which the hydroxyl group attached to the 3-position of a cyclopentanohydrophenanthrene ring has been removed.

Abstract: Provided is a novel hair growth and hair restoration material having excellent efficacy in hair growth and hair restoration for both men and women, even when the components thereof are at ultra-dilute concentrations; the hair growth and hair restoration material being characterized in containing a steryl glucopyranoside, preferably a cholesteryl glucopyranoside, represented by general formula (I). (In the formula, Z represents a sterol residue from which the hydroxyl group attached to the 3-position of a cyclopentanohydrophenanthrene ring has been removed.

Abstract: The present invention provides a novel water-soluble keratin derivative and applications thereof. Water-soluble keratin produced by the alkali treatment of feathers, and modified keratin, gives the following useful materials: (1) a high energy wave absorber, (2) a luminescent substrate, (3) a material weatherproofness improver, (4) a water repellant, and (5) a foaming agent.

Abstract: The present invention provides a novel water-soluble keratin derivative and applications thereof. Water-soluble keratin produced by the alkali treatment of feathers, and modified keratin, gives the following useful materials: (1) a high energy wave absorber, (2) a luminescent substrate, (3) a material weatherproofness improver, (4) a water repellant, and (5) a foaming agent.

Abstract: The present invention provides a novel water-soluble keratin derivative and applications thereof. Water-soluble keratin produced by the alkali treatment of feathers, and modified keratin, gives the following useful materials: (1) a high energy wave absorber, (2) a luminescent substrate, (3) a material weatherproofness improver, (4) a water repellant, and (5) a foaming agent.