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Gel-type external composition for skin

A composition for external use, gel-like technology, applied in the direction of skin care preparations, cosmetic preparations, medical preparations containing active ingredients, etc., can solve uneven agglomeration of shape retention, moisturization, finger acquisition , have not yet been solved and other problems, to achieve the effect of excellent usability, shape retention and stability

Pending Publication Date: 2021-12-10
HAYASHIBARA BIOCHEMICAL LAB INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As mentioned above, L-ascorbic acid derivatives are very useful ingredients for their whitening effect, etc., but the gel-form external skin composition containing them has poor shape retention, moisturizing properties, spreadability on the skin, and finger pick-up properties. , non-uniform caking (ヨレ), etc., have problems in usability, which have not yet been resolved, and a product containing L-ascorbic acid derivatives and having sufficiently satisfactory shape retention, usability and stability has not yet been obtained. Gel-like skin composition for external use

Method used

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  • Gel-type external composition for skin
  • Gel-type external composition for skin
  • Gel-type external composition for skin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127]

[0128] In 85 parts by mass of deionized water, 2 parts by mass of ascorbic acid-2-glucoside (trade name "AA2G (registered trademark)", sold by Hayashibara Co., Ltd.) as a derivative of ascorbic acid was uniformly mixed. Molecular (PEG-240 / decyltetradeceth-20 / HDI) copolymer (trade name "Adekanol GT-730", sold by ADEKA Co., Ltd.) 4 parts by mass, as a hardener of natural water-soluble polysaccharides 0.2 parts by mass of lipoxylated hydroxypropylmethylcellulose (trade name "Sunjerose 60L", sold by Daido Kasei Kogyo Co., Ltd.), 2 parts by mass of citric acid buffer, pentylene glycol (trade name "HYDROLITE-5", sold by Symrair Co., Ltd.) 2.5 parts by mass and an appropriate amount of 10 mass % sodium hydroxide solution to obtain a gel-like external skin composition for whitening. Similar to Experiment 3, its characteristics were tested immediately after preparation and after storage at 40°C for 3 months, and the shape retention and usability (hydration, stretchability on...

Embodiment 2

[0130]

[0131] In 70 parts by mass of deionized water, 10 parts by mass of ascorbic acid-2-glucoside sodium salt (manufactured by Co., Ltd. Hayashibara) as an ascorbic acid derivative, and (PEG-240 / decane) as a nonionic synthetic water-soluble polymer were uniformly mixed. Tetradeceth-20 / HDI) copolymer (trade name "Adekanol GT-700", sold by ADEKA Co., Ltd.) 1 part by mass, stearoxyhydroxypropyl methylcellulose as a natural water-soluble polysaccharide 1 part by mass of element (trade name "Sunjerol 90L", sold by Daido Chemical Industry Co., Ltd.), 10 parts by mass of 1,3-butanediol (trade name "1,3-butanediol", sold by Daicel Co., Ltd.) , 2 parts by mass of citric acid buffer solution, 0.8 parts by mass of phenoxyethanol (trade name "ハイソルブEPH", sold by Toho Chemical Co., Ltd.), and an appropriate amount of 10 mass % potassium hydroxide solution to obtain a gel-like skin for external use for whitening combination. Similar to Experiment 3, its characteristics were tested imm...

Embodiment 3

[0133]

[0134] In 60 parts by mass of deionized water, 5 parts by mass of ascorbic acid-2-glucoside (trade name "AA2G (registered trademark)", sold by Hayashibara Co., Ltd.) and potassium salt of ascorbic acid-2-glucoside ( Hayashibara Co., Ltd.) 5 parts by mass, (PEG-240 / decyltetradeceth-20 / HDI) copolymer (trade name "Adecanol GT-730", Co., Ltd. Company ADEKA sales) 4 parts by mass, xanthan gum (trade name "Eco-Gam / Keltorol T" sold by DSP Wukyo Food & Chemical Co., Ltd.) as a natural water-soluble polysaccharide 1 mass part, glycerin (trade name " Concentrated Glycerin for Cosmetics, sold by Kao Corporation) 10 parts by mass, 1,3-Butanediol (trade name "1,3-Butanediol", sold by Daicel Corporation) 10 parts by mass, citric acid buffer 2 parts by mass, 2.5 parts by mass of pentylene glycol (trade name "HYDROLITE-5", sold by Symrays Co., Ltd.), and an appropriate amount of 10 mass % potassium hydroxide solution to obtain a gel-like external skin composition for whitening. Si...

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PUM

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Abstract

The purpose of the present invention is to provide a gel-type external composition for the skin. The composition contains an L-ascorbic acid derivative and, even when a salt is also present in the composition, has excellent shape retention, is stable, and feels good to use; this purpose is met by providing a gel-type external composition for the skin containing an L-ascorbic acid derivative, a nonionic synthetic water-soluble polymer, and a natural water-soluble polysaccharide.

Description

technical field [0001] The present invention relates to a gel-like composition for external use on the skin. Specifically, it relates to a composition for external use on the gel which contains an L-ascorbic acid derivative and is excellent in shape retention, usability, and stability. Background technique [0002] L-ascorbic acid and L-ascorbic acid derivatives are known to exhibit a wide range of effects such as skin whitening effect, collagen production promoting effect, and antioxidant effect. Among these effects, in particular, compositions for external use on skin containing L-ascorbic acid derivatives for the purpose of whitening effect have been put into practical use, and are widely used widely from the young to the elderly. [0003] Among them, the gel-form external skin composition has a high water retention capacity and a large water retention capacity, and has characteristics of being able to mix water and oil in a well-balanced manner. Therefore, the moisturiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61Q19/00A61K8/02A61K8/67A61K8/73A61K8/81
CPCA61K8/73A61Q19/00A61K8/042A61K8/676A61K8/602A61K8/86A61K8/87A61K8/90A61K8/8129A61K8/731A61K8/732A61K8/737A61K8/345A61K8/37A61K2800/522A61Q19/007A61Q19/02A61Q19/08A61Q19/10
Inventor 逢泽起代美三宅正树三鼓仁志
Owner HAYASHIBARA BIOCHEMICAL LAB INC