Abstract: The present invention relates to a core-shell capsule comprising: a core comprising an oil, a solvent satisfying relational expression 1 below, and a water-insoluble polymer compound dissolved in the solvent; and a water-insoluble polymer shell enclosing the core. 0.01?CA/CB?100??[Relational expression 1] (in relational expression 1, CA/CB is the distribution coefficient of solvent, and when the solvent is dissolved in oil and water to reach equilibrium, CA is the concentration of the solvent dissolved in the oil and CB is the concentration of the solvent dissolved in water).

Abstract: The present invention relates to: an oil-in-water emulsion composition having a viscosity of 1,500-50,000 cps, and comprising an anionic surfactant and a sugar surfactant so as to satisfy the following relational expression 1; and a cosmetic composition containing the same. [Relational expression 1] 0.01?A/B?1 (In relational expression 1, A is the wt % of the anionic surfactant, and B is the wt % of the sugar surfactant, wherein the wt % of each ingredient is based on the total weight of the composition, and B is 1-30 wt %.

Abstract: The present invention relates to: an oil-in-water emulsion composition having a viscosity of 1,500-50,000 cps, and comprising an anionic surfactant and a sugar surfactant so as to satisfy the following relational expression 1; and a cosmetic composition containing the same. [Relational expression 1] 0.01?A/B?1 (In relational expression 1, A is the wt % of the anionic surfactant, and B is the wt % of the sugar surfactant, wherein the wt % of each ingredient is based on the total weight of the composition, and B is 1-30 wt %.

Abstract: The present invention relates to a core-shell capsule comprising: a core comprising an oil, a solvent satisfying relational expression 1 below, and a water-insoluble polymer compound dissolved in the solvent; and a water-insoluble polymer shell enclosing the core. [Relational Expression 1] 0.01?CA/CB?100 (in relational expression 1, CA/CB is the distribution coefficient of solvent, and when the solvent is dissolved in oil and water to reach equilibrium, CA is the concentration of the solvent dissolved in the oil and CB is the concentration of the solvent dissolved in water.

Abstract: The present invention provides a cosmetic composition containing one or more selected from a group consisting of green tea saponin and green tea polyphenol as active ingredients. The cosmetic composition of the invention is very safe to the skin and can greatly enhance biological mechanisms in the skin, and thus can serve as an anti-aging cosmetic composition.

Abstract: The present invention provides a cosmetic composition containing one or more selected from a group consisting of green tea saponin and green tea polyphenol as active ingredients. The cosmetic composition of the invention is very safe to the skin and can greatly enhance biological mechanisms in the skin, and thus can serve as an anti-aging cosmetic composition.

Abstract: The present invention provides hydroxamic acid derivatives which have anti-aging efficacy and a method for preparation thereof. It is further provided skin-care external compositions for preventing skin aging, containing the hydroxamic acid derivatives represented by the formula (I) as an active ingredient.

Abstract: The present invention provides hydroxamic acid derivatives represented by the following formula (I), having anti-aging efficacy and a method for preparation thereof: wherein, R1 is herein, R5 and R6 each independently represents a hydrogen atom, a C1-C10 alkyl group or a C3-C6 cyclic alkyl group; R2 is CONH, NHCO, CONR7 or NR7CO, herein, R7 represents a C1-C10 alkyl group; R3 is —(CH)n—, herein, n=0 or 1; and R4 is a hydrogen atom or a C1-C10 alkyl group. Further, the present invention provides skin-care external compositions for preventing skin aging, containing said hydroxamic acid derivatives represented by the formula (I) as an active ingredient.