Body cleansing agent
First Claim
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1. An aqueous body wash composition comprising:
- (a) at least 5 percent by weight of a water-soluble surfactant or surfactants; and
(b) at least 0.05 percent by weight of a lipid-soluble, water-insoluble active substance, wherein the active substance is solubilized with a polar lipid in a lipid/surfactant mixed micelle or liquid crystal, or is microemulsified with a non-polar lipid wherein the emulsion droplets have a diameter of less than 500 nm, and wherein The water-soluble surfactant or surfactants comprise (i) a mixture of an anionic sulfate or sulfonate surfactant and a zwitterionic betaine surfactant, or (ii) a mixture of an anionic surface and an alkyl glycoside surfactant.
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Abstract
The invention relates to lipid soluble, water insoluble cosmetic or dermatological active substances which can be included in body cleansing agents in the form of an aqueous preparation with at least 5 wt. % water soluble ionic or non-ionic surfactant content by solubilization of the active substances with a polar lipid in lipid-surfactant mixed micelles or liquid crystals or by microemulsification with a nonpolar lipid, wherein the emulsion particles have a diameter which is less than 500 nm. Said agents are also characterized by enhanced skin penetration by the active substances.
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Citations
15 Claims
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1. An aqueous body wash composition comprising:
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(a) at least 5 percent by weight of a water-soluble surfactant or surfactants; and
(b) at least 0.05 percent by weight of a lipid-soluble, water-insoluble active substance, wherein the active substance is solubilized with a polar lipid in a lipid/surfactant mixed micelle or liquid crystal, or is microemulsified with a non-polar lipid wherein the emulsion droplets have a diameter of less than 500 nm, and wherein The water-soluble surfactant or surfactants comprise (i) a mixture of an anionic sulfate or sulfonate surfactant and a zwitterionic betaine surfactant, or (ii) a mixture of an anionic surface and an alkyl glycoside surfactant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification