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Composition containing extract derived from green tea leafstalk for skin whitening

A composition and extract technology, applied in the directions of medical preparations containing active ingredients, preparations for skin care, preparations for dressing, etc., can solve the problems of insufficient whitening effect, skin safety problems, limited use and the like, Achieve even and bright skin tone, skin safety, and high formulation stability

Inactive Publication Date: 2017-02-22
AMOREPACIFIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, ascorbic acid, kojic acid, arbutin, hydroquinone, Glutathione, or these derivatives, substances that inhibit tyrosinase activity, etc. are mixed and used in cosmetics or pharmaceuticals, but these substances have insufficient whitening effect, safety problems on the skin, and mixed When used in cosmetics, stability problems in the dosage form, etc., so its use is limited

Method used

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  • Composition containing extract derived from green tea leafstalk for skin whitening
  • Composition containing extract derived from green tea leafstalk for skin whitening
  • Composition containing extract derived from green tea leafstalk for skin whitening

Examples

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Effect test

Embodiment 1

[0023] Example 1: Preparation of extract derived from green tea stalk

[0024] In dried green tea leaves (a place of purchase: Socho Co., Ltd. ), adding purified water with a temperature of 80 to 90° C. in an amount of 5 times the weight ratio of the green tea leaves, and heating and stirring for two hours while maintaining the temperature. After cooling down to normal temperature, only the water-soluble components were separated, and the first filtration was performed using Japanese filter paper Adventec No.131 (Adventec MFS, Inc., Japan). Slowly add ethanol in an amount twice the total weight of the filtrate to the filtrate while stirring, remove the chlorophyll in the supernatant, collect only the precipitate, and dry it with hot air while maintaining a temperature of 30-40°C to obtain a white powder The extract derived from the stalk of green tea leaves (yield: 1-3%).

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Abstract

The present invention relates to a composition containing an extract derived from green tea leafstalks for skin whitening, wherein the composition is safe for the skin and simultaneously has excellent skin-whitening efficacy and high stability. Since the present invention uses green tea leafstalks, which are typically not used and discarded, the present invention has excellent value in terms of using waste resources. In addition, by containing the extract derived from green tea leafstalks, the composition of the present invention is safe for the skin, has high formulation stability, shows an excellent skin-whitening effect which reduces symptoms of pigmentation such as melasma and freckles, and reduces skin darkness and therefore leads to even and bright skin color.

Description

technical field [0001] The present invention relates to a highly safe skin whitening composition containing an extract derived from green tea stalks, which is safe for skin and has an excellent skin whitening effect. Background technique [0002] The skin color of a person is determined by various factors such as the activity of melanocytes that produce melanin, the distribution of blood vessels, the thickness of the skin, and whether it contains carotenoids, bilirubin, and other pigments inside and outside the human body. In particular, melanocytes produce black pigment called melanin through the action of various enzymes such as tyrosinase, which is the most important factor. The formation of melanin is related to the influence of genetic factors, hormone secretion, stress and other related physiological factors and environmental factors such as ultraviolet radiation. It is well known that melanin in the skin has an important function of protecting the body from ultraviol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/97A61Q19/02A61Q19/00
CPCA61K2800/80A61Q19/02A61K8/9789
Inventor 刘世真黄晶俄金西英申松锡
Owner AMOREPACIFIC CORP
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