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Cosmetic composition

A cosmetic composition and composition technology, applied in the direction of cosmetics, cosmetic preparations, dressing preparations, etc., can solve the problems of high skin irritation, shorten the residence time, etc., and achieve the effect of prolonging the moisturizing time

Inactive Publication Date: 2017-10-24
COVESTRO DEUTSCHLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, after the cosmetic composition containing hyaluronic acid is applied on the skin, because the release rate of hyaluronic acid on the skin is too fast, on the one hand, it is very irritating to the skin, and on the other hand, it shortens the time on the skin. dwell time on

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0084] All percentages in the present invention are percentages by weight, and are based on 100% by weight of the cosmetic composition of the present invention, unless otherwise stated.

[0085] The weight referred to in the present invention is the weight of the effective substance. For a substance in the form of a dispersion, the weight referred to in the present invention is the actual weight of the substance, excluding the weight of the carrier, that is, the weight of the substance in the form of a dispersion referred to in the present invention = the weight of the dispersion × the dispersion The solid content of the body. For the solid substance containing crystal water, the weight of the substance referred to in the present invention is the weight excluding the crystal water.

[0086] Raw materials and reagents

[0087]

[0088]

[0089] Formula preparation method

[0090] The following examples and comparative examples can be prepared by the following methods:

[0091] Prepa...

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Abstract

The invention relates to a cosmetic composition, and application and a use method of the composition. The composition contains at least one kind of anionic water-borne polyurethane and at least one kind of humectant; the polyurethane contains solid ingredients; the humectants contain at least one carboxylic acid and / or carboxylate group. The anionic water-borne polyurethane in the cosmetic composition provided by the invention forms a film in the use process; the humectant is distributed in the film and is slowly seeped into the surface of the skin by penetrating through the film; the irritation of the humectant on the skin is reduced; meanwhile, the dwell time of the humectant on the skin is prolonged; the skin moisture preservation time is prolonged.

Description

Technical field [0001] The invention relates to a cosmetic composition and its application and use method. Background technique [0002] Water is the primary condition for maintaining a healthy skin shape. The water content of the skin determines whether the skin is immature, plump, shiny and soft. Under normal circumstances, the water stored in the skin accounts for about 18% to 20% of all water in an adult human body. There are many natural moisturizing factors in the normal stratum corneum, including amino acids (40%), pyrrolidone carboxylic acid (12%), lactic acid (12%), sugar (8.5%), urea (7%), chlorine and sodium , Potassium, etc. If the water content of the skin is lower than normal, the skin will be dull, dry, molting, or even small wrinkles, and often accompanied by dryness and tightness. At this time, external moisturizers are needed to relieve symptoms. [0003] Hyaluronic acid is a natural biomolecule widely present in the skin and other tissues. Because of its excel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/87A61K8/36A61Q19/00
CPCA61K8/36A61K8/87A61Q19/00
Inventor 熊晓辉刘彩娥
Owner COVESTRO DEUTSCHLAND AG
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