Composition Of Skin External Application For Anti-Aging

a technology of anti-aging composition and external application, which is applied in the direction of drug compositions, biocide, heterocyclic compound active ingredients, etc., can solve the problems of promoting skin aging, deteriorating normal functions of the skin, and elasticity loss, so as to reduce the biosynthesis of gelatinase, inhibit the decomposition, and increase the effect of biosynthesis

Inactive Publication Date: 2009-01-08
AMOREPACIFIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]The composition for external use on skin according to the present invention comprising at least one of catechins and flavonols of the green tea extract as an active ingredient can reduce biosynthesis of gelatinase (MMP-2, MMP-9) and increase biosynthesis of type IV collagen, type VII collagen and laminin 10 / 11 to inhibit the decomposition and promote the generation at the dermis-epidermis junction, thereby protect the dermis-epidermis junction.

Problems solved by technology

However, excessive physical and chemical stimulation from the outside, UV rays, stress and malnutrition may deteriorate normal functions of the skin and promote skin aging such as elasticity loss, keratinization and wrinkle formation.
Particularly, the dermis-epidermis junction is severely damaged by UV irradiation.
Further, in the research using mouse wrinkle model induced by UV-B irradiation for a long period of time, it has been found that gelatinase formed in the epidermis by UV-B irradiation may cause damage of the dermis-epidermis junction, damage of dermis and wrinkle formation.
Meanwhile, the skin which has been seldom exposed to UV rays does not show such multiplication and heat insulation even at the advanced age.
When the dermis-epidermis junction is damaged, wrinkle is formed by flattering of the junction, multiplication and heat insulation, and the skin is sagged and is apt to be damaged.
Also, by the loss of the characteristic barrier function, the dermis-epidermis junction fails to filter pollutants from the outer environment, whereby noxious materials can readily infiltrate to the dermis and the skin can be damaged.

Method used

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  • Composition Of Skin External Application For Anti-Aging
  • Composition Of Skin External Application For Anti-Aging
  • Composition Of Skin External Application For Anti-Aging

Examples

Experimental program
Comparison scheme
Effect test

reference example 1

Preparation of Green Tea Extract 1

[0034]100 g of dried green tea leaves was taken into 10 times ethanol for 12 to 15 hours at ambient temperature for extraction, followed by filtration through filter paper. The filtrate was concentrated at 50° C. at reduced pressure.

reference example 2

Preparation of Green Tea Extract 2

[0035]100 g of dried green tea leaves was taken into 10 times ethanol for 12 to 15 hours at ambient temperature for extraction, followed by filtration through filter paper. The filtrate was concentrated at 50° C. at reduced pressure.

experimental example 1

Measurement of Inhibiting Effect on Biosynthesis of Gelatinase A (MMP-9) and Gelatinase B (MMP-2) by UV Irradiation

[0036]Human keratinocytes were cultured in a 24-well plate type incubator at a concentration of 104. After 24 hours, the plate was irradiated by UV-B at 30 mJ / cm2. The media were exchanged with new medium containing 10 ppm of each test substance. After 2 days of cultivation, each supernatant was harvested and subjected to the zymography using gelatine gel to obtain produced MMP-2 and MMP-9, quantities of which were then measured by a densitometer. The data were calculated as comparative values, referred to 100 of UV control and the result is shown in Table 1.

TABLE 1IngredientsMMP-2 (%)MMP-9 (%)Myricetin5155EGCG5256GCG5356CG5355Green tea extract 14849Green tea extract 26162Green tea catechin extract 15559Green tea catechin extract 26260Control100100

[0037]From the result of Table 1, it was confirmed that the active ingredient used as an active ingredient in the present in...

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Abstract

The present invention relates to an anti-aging composition for external use on skin, and more particularly, to an anti-aging composition for external use on skin comprising at least one of catechins and flavonols as an active ingredient to inhibit decomposition and promote generation or protection at the dermis-epidermis junction.

Description

TECHNICAL FIELD[0001]The present invention relates to an anti-aging composition for external use on skin, and more particularly, to an anti-aging composition for external use on skin comprising at least one of catechins and flavonols as an active ingredient to inhibit decomposition and promote generation or protection at the dermis-epidermis junction.[0002]Also, it is possible to obtain synergy effect on anti-aging by using the green tea extract in combination with theanine.BACKGROUND ART[0003]The skin which is a primary barrier of the human body protects organs in the body from change of temperature and humidity and stimulation from the outer environment such as UV rays and pollutants and plays an important role for homeostasis such as regulation of body temperature. However, excessive physical and chemical stimulation from the outside, UV rays, stress and malnutrition may deteriorate normal functions of the skin and promote skin aging such as elasticity loss, keratinization and wr...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K8/49A61Q19/08
CPCA61Q19/08A61K8/498A61P17/16A61P29/00A61P43/00A61K8/442A61K2800/592
Inventor KIM, JEONG KISHIN, HYUN JUNGKIM, SU NAMLEE, BYEONG GONCHANG, IH SEOP
Owner AMOREPACIFIC CORP
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