Sunscreen cosmetic

A technology for cosmetics and quality, applied in the direction of cosmetics, cosmetic preparations, dressing preparations, etc., can solve problems such as difficult to dissolve, cosmetic stability, emulsification stability, and use feeling decline, and achieve less friction and excellent UV absorption Effect, the effect of excellent usability

Inactive Publication Date: 2012-03-21
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, there is a technical problem in ensuring the photostability of the ultraviolet absorber itself due to the combination of multiple ultraviolet absorbers.
The reason for this is that the UV absorber has low compatibility with the oil component that is the base of cosmetics and is difficult to dissolve, so in order to stably blend it into cosmetics, it is necessary to mix a large amount of a specific oil component with good compatibility
Furthermore, if a large amount of the above-mentioned specific oil component is blended, it will be the main cause of a decrease in the stability of the cosmetic (especially the emulsion stability of the water-in-oil emulsion cosmetic) and a decrease in the feeling of use.

Method used

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  • Sunscreen cosmetic
  • Sunscreen cosmetic
  • Sunscreen cosmetic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0102] The present invention will be specifically described by way of examples. The present invention is not limited to these examples.

[0103] Unless otherwise specified, the blending amount is % by mass.

[0104] [Inventions of Claims 1 to 4]

[0105] Sunscreen cosmetics of Examples and Comparative Examples (standards) were produced by conventional methods, and the usability and ultraviolet absorption effects were evaluated.

[0106] [Table 1-1]

[0107]

[0108] [Table 1-2]

[0109]

[0110]

[0111] The actual use test and evaluation are carried out by a special team. The results and evaluation criteria are shown below. The examples of the present invention all have an excellent sense of use.

[0112] evaluation standard

[0113] [Table 1-3]

[0114] project

Difference

Evaluation score (5 levels)

it is good

ductility

Heavy

-2，-1，0，1，2

light

powder friction

have

-2，-1，0，1，2

none

...

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Abstract

Disclosed is a sunscreen cosmetic characterized by comprising (1) p-methoxycinnamate-2-ethylhexyl, (2) diethylamino hydroxybenzoyl hexyl benzoate, (3) dimethicodiethylbenzal malonate, and (4)2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]phenyl}-6-(4-methoxyphenyl)-(1,3,5)-triazine. Also disclosed is a sunscreen cosmetic characterized by comprising (1) p-methoxycinnamate-2-ethylhexyl, (2) diethylamino hydroxybenzoyl hexyl benzoate, (3) dimethicodiethylbenzal malonate, (4) 2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]phenyl}-6-(4-methoxyphenyl)- (1,3,5)-triazine, and (5) a powder. The sunscreen cosmetics have excellent feeling upon application and high SPF values.

Description

technical field [0001] The invention relates to a sunscreen cosmetic. More specifically, the present invention relates to sunscreen cosmetics having excellent usability and ultraviolet absorbing effect. Background technique [0002] The important ultraviolet absorption wavelength regions of sunscreen cosmetics are UV-A region (320-400nm) and UV-B region (290-320nm). In addition, it is considered that ultraviolet rays in the UV-A region (320-400nm) darken the skin, but do not cause sunburn and promote skin aging like ultraviolet rays in the UV-B region (290-320nm). But in recent years, people have gradually discovered that the ultraviolet rays in the UV-B area only reach the surface of the skin relatively speaking, while the ultraviolet rays in the UV-A area can reach the deep part of the skin, which is not only the cause of skin aging, but also the cause of skin cancer. . [0003] In terms of structure, UV absorbers for cosmetics that have been used so far include (1) ben...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/895A61K8/06A61K8/37A61K8/44A61K8/49A61Q17/04
CPCA61K8/89A61K8/44A61K8/4966A61K8/37A61Q17/04A61K2800/30A61K8/895A61K8/06
Inventor 石飞佐和子白尾雅之阿部公司山口和弘
Owner SHISEIDO CO LTD
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