Skin lightening cosmetic
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUNSTAR KK
- Publication Date
- 2003-10-29
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
field of invention
[0001] The present invention relates to a whitening cosmetic for disappearing, lightening or preventing skin darkening caused by ultraviolet rays or skin pigmentation such as age spots and freckles. Background of the invention
[0002] One of the aging phenomena of the skin is the appearance of abnormal pigmentation such as so-called age spots such as liver spots and age spots. These hyperpigmentation disorders are known to be exacerbated by ultraviolet rays, and for their prevention, ultraviolet protective agents and the like can be used. Whitening cosmetics using vitamin C, placenta extract, kojic acid, arbutin, unsaturated fatty acids, and the like as active ingredients are known as substances capable of reducing already-onset dyspigmentation. Among them, unsaturated fatty acids represented by linoleic acid (Linoleic acid) are known to have an excellent effect on reducing pigmentation generated in the skin (refer to Journal of Japanese Cosmetic Technol...