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Moisturizing cosmetic

A technology for cosmetics and moisturizing, applied in the directions of cosmetics, cosmetic preparations, cosmetic preparations, etc., can solve the problems of strong greasy feeling, low content of moisturizing ingredients, high cost of moisturizing agents, etc.

Inactive Publication Date: 2019-06-25
王宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the hydrating and moisturizing cosmetics in the cosmetics market use emulsification systems such as creams and lotions. The oily components in the emulsification system form a grease film on the skin surface to prevent water from evaporating. However, due to the use of hydrophobic ingredients in these products, the greasy feeling is strong , poor user experience
There are also products that add new water-soluble moisturizers, such as adding sodium hyaluronate. However, such moisturizers are expensive and subject to cost constraints. The content of moisturizing ingredients is often very low, and they cannot form protection against water evaporation on the skin surface. membrane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The preparation method of purified konjac polysaccharide is as follows.

[0010] Add konjac underground tuber extract (total polysaccharide content not less than 80%) to water according to the weight ratio of material to liquid: 2:100. Heat the extract to 80-100°C, stir well to dissolve, pass through a 100-400-mesh sieve while hot to remove insoluble particles, and collect the filtrate. Returning the filtrate to room temperature, adding absolute ethanol to precipitate konjac polysaccharide, drying the precipitated konjac polysaccharide to obtain purified konjac polysaccharide.

Embodiment 2-6

[0012] Cosmetics were prepared by using the following production methods, using the ingredients in Examples 2-6 shown in Table 1 as raw materials.

[0013] Add the ingredients of group A into purified water at 80-100°C, mix until completely dissolved, pass through a 100-400 mesh screen while it is hot, filter and cool to room temperature, and it is phase A. Add the components of group B into purified water at room temperature, mix well, and pass through a 100-400 mesh sieve to form phase B. After mixing phase A and phase B evenly, the product of Example 2-6 is obtained.

[0014] Table 1

[0015]

Embodiment 7

[0020] Evaluation of hydrating and moisturizing effects

[0021] Taking the product prepared in Example 2-6 as the test sample, and the product prepared in Comparative Example 1-2 as the control sample, select 15 volunteer subjects who are healthy and have normal skin physiological conditions, and use 10 The rectangular area of ​​×3cm is the test area. After the skin in this area is fully cleaned and dried, the test area is 10mg / cm 2 Apply the test sample and the control sample evenly on the skin of the test area. Use a skin moisture measuring instrument to measure the skin surface moisture content of the test area before the sample is applied, 1h and 6h after application.

[0022] When testing the skin surface moisture content, repeat the measurement three times in the test area, calculate the average value of the results, and at the same time count the standard deviation (Standard deviation, SD) of the skin surface moisture content, and calculate the skin surface moisture i...

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Abstract

The invention belongs to the field of cosmetics. A moisturizing cosmetic comprises, by mass, the following components: 5.0-10.0% of glycerol, 0.05% of mannitol, 0.5% of disodium edetate, 0.5%-1.0% ofpurified konjac polysaccharide, 0.1% of goat milk extract, 0.5% of rose extract, 2.5% of witch hazel extract, 2.0% of chamomile extract, 5.0% of evening jade extract, 0.1% of ethylhexyl glycerol, a proper amount of preservative and the balance purified water. The invention aims to overcome the defects in the prior art and provide a moisturizing cosmetic with a remarkable effect. The moisturizing cosmetic does not contain grease components and has a refreshing use feeling when in use. The purified konjac polysaccharide is used as a moisturizing agent, a protective film is formed on the surfacelayer of the skin while moisturizing the skin, water evaporation is prevented, and the moisturizing effect of the product is further enhanced.

Description

technical field [0001] The invention relates to the field of cosmetics, in particular to a hydrating and moisturizing cosmetic for hydrating the skin and maintaining the water content of the skin. Background technique [0002] The skin is the largest organ of the human body. It is in direct contact with the external environment and is the first line of defense for the body to resist external adverse factors. The healthier the skin, the stronger the body's defense against external adverse factors. Healthy skin can also give people the enjoyment of beauty, and bring a sense of relaxation, happiness, beauty and vitality to oneself and others. [0003] One of the important constituents of the skin is water, which directly participates in the metabolism of the skin and is closely related to the homeostasis of the skin. Moisturizing the skin is very important to maintain the normal physiological functions of the skin and beautify the appearance. Lack of moisture will have adverse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/98A61K8/34A61K8/73A61K8/9789A61K8/9794A61Q19/00C08B37/00
CPCY02P20/141
Inventor 王宇
Owner 王宇
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