External preparation for skin

A skin external preparation and skin technology, applied in the field of oil-in-water or water-in-oil emulsified sunscreen cosmetics, to achieve excellent UV blocking effect, excellent dispersion and stability, and excellent skin tightening effect

Inactive Publication Date: 2008-11-26
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, even according to this method, it cannot be said that the uniformity of the water phase and / or the oil phase, as well as the emulsion stability, and the dispersibility of zinc oxide and / or titanium dioxide are sufficient

Method used

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  • External preparation for skin
  • External preparation for skin
  • External preparation for skin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I-1

Embodiment I-2

Embodiment I-3～I-12 and comparative example I-1～I-4

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Abstract

An external preparation for skin comprising isononyl 2-ethylhexanoate and/or 2-ethylhexyl 2-ethylhexanoate (a component (a)); an oil-in-water type emulsion skin cosmetic comprising the component (a), (b) one or more members selected from higher fatty acids and higher alcohols which are in a solid or a semi solid form at normal temperature (25 DEG C), (c) a homopolymer, a copolymer or a crosspolymer containing as a constituent unit, one or more members selected from 2-acrylamido-2-methylpropanesulfonic acid, acrylic acid and derivatives thereof, or a mixture thereof, and (d) one or more members selected from nonionic surfactant having an HLB value of 9 or greater; and an oil-in-water type or a water-in-oil type emulsion sunscreen cosmetic comprising (a) isononyl 2-ethylhexanoate and/or 2-ethylhexyl 2-ethylhexanoate, (b) an ultraviolet light absorber, (c) an ultraviolet light scattering agent, and (d) a silicone oil.

Description

skin topical technical field The present invention relates to skin external preparations and oil-in-water emulsified skin cosmetics containing specific 2-ethylhexanoate. In addition, the present invention relates to oil-in-water or water-in-oil emulsified sunscreen cosmetics. More specifically, the present invention relates to oil-in-water or water-in-oil emulsified cosmetics that are excellent in usability and formulation stability and can achieve high SPF values. Sunscreen cosmetics. Background technique In the past, oil-in-water emulsified skin cosmetics showed moisturizing feeling, smooth extensibility, soft feeling, etc., and they were sensitive to higher fatty acids such as stearic acid, palmitic acid, myristic acid, behenic acid; Vaseline, Brazilian Palm wax, candelilla wax, ozokerite, microcrystalline wax and other waxes; solid oils such as lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol and other higher alcohols are emulsified...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/37A61K8/06A61Q17/04
Inventor 大村孝之高仓喜仁
Owner SHISEIDO CO LTD
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