Clear hydroalcholic cosmetic microemulsions
First Claim
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1. Cosmetic microemulsion compositions which are clear and storage stable comprising:
- (i) from about 1 to about 99% of water;
(ii) from about 15 to about 70% of ethanol;
(iii) from about 0.1 to about 3% of skin nutritive oil selected from the group consisting of vitamin oils, C10 -C60 terpenes and mixtures thereof;
(iv) from about 1 to about 10% of castor oil ethoxylated with about 40 to about 55 moles of ethylene oxide per mole of castor oil; and
(v) from about 0.1 to about 2.0% of a propoxylated mono- or di-hydric alkanol selected from the group consisting of PPG-10 cetyl ether and PPG-10 butanediol.
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Abstract
A hydroalcoholic microemulsion composition is provided which includes water, a C1 -C4 alkanol and an oil material selected from vitamin oils, C10 -C60 terpenes and mixtures thereof. The composition is formed into a clear, storage stable microemulsion through a combination of surfactants including an ethoxylated castor oil and a propoxylated alkyl ether. Especially useful is a combination of PEG-40 hydrogentated castor oil with either PPG-10 cetyl ether, PPG-10 butanediol or PPG-14 butyl ether.
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7 Claims
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1. Cosmetic microemulsion compositions which are clear and storage stable comprising:
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(i) from about 1 to about 99% of water; (ii) from about 15 to about 70% of ethanol; (iii) from about 0.1 to about 3% of skin nutritive oil selected from the group consisting of vitamin oils, C10 -C60 terpenes and mixtures thereof; (iv) from about 1 to about 10% of castor oil ethoxylated with about 40 to about 55 moles of ethylene oxide per mole of castor oil; and (v) from about 0.1 to about 2.0% of a propoxylated mono- or di-hydric alkanol selected from the group consisting of PPG-10 cetyl ether and PPG-10 butanediol. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification