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Sunscreen containing catechuic acid acetylated derivative

An acetylated derivative, the technology of catechin acetyl, is applied in the direction of cosmetics, cosmetic preparations, skin care preparations, etc. It can solve the problems of fat solubility and poor bioavailability, and achieve repair of ultraviolet damage, improve fat solubility, Improve the effect of sun protection

Inactive Publication Date: 2012-11-21
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, catechin molecules have more phenolic hydroxyl groups. For example, catechin EGCG has 8 phenolic hydroxyl groups and a molecular weight of 458, which leads to problems of poor fat solubility and bioavailability in practical applications.

Method used

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  • Sunscreen containing catechuic acid acetylated derivative
  • Sunscreen containing catechuic acid acetylated derivative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A sunscreen isolation milk containing an acetylated derivative of catechin EGCG, the raw materials in the sunscreen isolation milk are composed as follows (by weight percentage): propylene glycol (2%), caprylic acid / capric triglyceride ( 1%), acetylated derivatives of catechin EGCG (5.0%), titanium dioxide (4%), ethylhexyl methoxycinnamate (4%), C12-15 alkanol benzoate (1% ), mineral oil (5%), ethylhexyl salicylate (4%), cetearyl alcohol (0.2%), steareth-2 (2%), methylparaben (0.05%) ), essence (0.02%), water (balance). This sunscreen isolation lotion has SPF30 sunscreen function, and is suitable for use under strong sunlight outdoors or beach activities.

[0016]

Embodiment 2

[0018] A sunscreen isolation milk containing an acetylated derivative of catechin EGCG, the raw materials in the sunscreen isolation milk are composed as follows (by weight percentage): propylene glycol (2%), caprylic acid / capric triglyceride ( 2%), acetylated derivatives of catechin EGCG (3.0%), titanium dioxide (5%), ethylhexyl methoxycinnamate (5%), C12-15 alkanol benzoate (2% ), mineral oil (3%), ethylhexyl salicylate (3%), cetearyl alcohol (0.5%), steareth-2 (1%), methylparaben (0.03%) ), essence (0.01%), water (balance). This sunscreen isolation lotion has SPF15 sunscreen function, and is suitable for use under strong sunlight outdoors or indoors.

[0019]

Embodiment 3

[0021] A sunscreen isolation milk containing an acetylated derivative of catechin EGCG, the raw materials in the sunscreen isolation milk are composed as follows (by weight): propylene glycol (3%), caprylic acid / capric triglyceride ( 1%), acetylated derivatives of catechin EGCG (1.0%), titanium dioxide (2%), ethylhexyl methoxycinnamate (3%), C12-15 alkanol benzoate (3%) ), mineral oil (4%), ethylhexyl salicylate (2%), cetearyl alcohol (0.3%), steareth-2 (2%), methylparaben (0.02%) ), essence (0.02%), water (balance). This sunscreen barrier lotion has the sunscreen function of SPF8, and is suitable for use under weak sunlight outdoors or indoor conditions.

[0022]

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PUM

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Abstract

The invention provides sunscreen containing a catechuic acid acetylated derivative. The sunscreen is prepared from raw materials including water, propylene glycol, caprylic / capric triglyceride, catechuic acid EGCG (epigallocatechin gallate) acetylated derivative, titanium dioxide, methoxycinnamic acid phthalic acid ester, C12-15 alkanol benzene formate, mineral oil, ethylhexyl salicylate, cetostearyl alcohol, steareth-2, methylparaben and essence. The sunscreen contains the catechuic acid EGCG acetylated derivative, ultraviolet absorptivity of catechuic acid EGCG molecules is used, lipid solubility of the sunscreen is improved by means of acetylation, bioavailability of the catechuic acid EGCG molecules in skin superficial cells is effectively enhanced, and accordingly, sun protection and ultraviolet injury repair effects are improved.

Description

technical field [0001] The invention belongs to the field of medical cosmetic products, in particular to a sunscreen isolation milk containing acetylated catechin derivatives. Background technique [0002] Prolonged exposure to strong sunlight and ultraviolet rays has a very serious impact on the skin, which not only causes erythema, dark spots and other phenomena that are common in people's daily life, but may also cause skin aging. Therefore, people often take some preventive measures in outdoor activities, and smear some substances with sunscreen, isolation strong sunlight or ultraviolet radiation functions on the skin surface to protect the skin from damage. This sun protection measure is beneficial to prevent the occurrence of some abnormal phenomena after human skin is exposed to sunlight, such as solar dermatitis, skin cancer, etc., thereby ensuring people's health. [0003] Catechin is the most important functional component in tea, and it also plays a role in absor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/92A61K8/49A61Q17/04
Inventor 江和源张建勇龙丹
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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