Vesicle useful for external preparation for skin, and external preparation for skin comprising the vesicle

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United States of America Patent

PATENT NO 8865208
SERIAL NO

12601481

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Abstract

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Disclosed is a technique for allowing an active ingredient as an agent for improving or maintaining the dermal environment to reach a dermis. Specifically disclosed is a vesicle comprising the following components 1) to 3): 1) an α,ε-bis(γ-N—(C10-30)acylglutamyl)lysine and/or a salt thereof; 2) ceramide and/or a derivative thereof; and 3) one or more selected from a glycerin fatty acid ester, a polyglycerin fatty acid ester and a pyroglutamic acid glycerin fatty acid ester. The acyl group in the α,ε-bis(γ-N—(C10-30)acylglutamyl)lysine is preferably a lauroyl group. The ceramide or the derivative thereof is preferably ceramide type-2 or ceramide type-3. The vesicle can encapsulate an active ingredient. The vesicle can be contained in an external preparation for the skin.

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Patent Owner(s)

  • POLA CHEMICAL INDUSTRIES INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akatsuka, Hidetaka Yokohama, JP 2 5
Imamura, Hitoshi Yokohama, JP 40 154
Ishihara, Yasuyuki Yokohama, JP 27 63

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