Stabilization of terpenoids in cosmetic compositions
First Claim
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1. A personal care composition comprising:
- a. about 0.000001 to about 10% of an unsaturated terpenoid;
b. about 0.000001 to about 10% of a 4-substituted resorcinol derivative of the general formula (I);
wherein each R1 and R2 independently is selected from the group consisting of a hydrogen atom, —
CO—
R, —
COO—
R, and CONHR;
wherein R represents a C1-C18 hydrocarbon;
R3 represents a C1-C18 hydrocarbon or has a general formula (II);
wherein X represents hydrogen;
OR1, wherein R1 represents hydrogen, (C1-C6)alkyl or aryl-(C1-C6)alkyl;
OCOR2 wherein R2 represents (C1-C6)alkyl, aryl-(C1-C6)alkyl or phenyl;
halogen;
(C1-C6)alkyl;
aryl-(C1-C6)alkyl, or aryl-(C1-C6)alkyl;
or NHR1 wherein R1 is defined as above;
n is 0 to 3; and
the dashed line indicates an optional double bond; and
c. a cosmetically acceptable vehicle.
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Abstract
Cosmetic compositions containing terpenoids along with a 4-substituted resorcinol derivative exhibit improved storage stability and oxidative stability.
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Citations
11 Claims
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1. A personal care composition comprising:
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a. about 0.000001 to about 10% of an unsaturated terpenoid;
b. about 0.000001 to about 10% of a 4-substituted resorcinol derivative of the general formula (I);
wherein each R1 and R2 independently is selected from the group consisting of a hydrogen atom, —
CO—
R, —
COO—
R, and CONHR;
wherein R represents a C1-C18 hydrocarbon;
R3 represents a C1-C18 hydrocarbon or has a general formula (II);
wherein X represents hydrogen;
OR1, wherein R1 represents hydrogen, (C1-C6)alkyl or aryl-(C1-C6)alkyl;
OCOR2 wherein R2 represents (C1-C6)alkyl, aryl-(C1-C6)alkyl or phenyl;
halogen;
(C1-C6)alkyl;
aryl-(C1-C6)alkyl, or aryl-(C1-C6)alkyl;
or NHR1 wherein R1 is defined as above;
n is 0 to 3; and
the dashed line indicates an optional double bond; and
c. a cosmetically acceptable vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cosmetic composition comprising:
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a. an unsaturated terpenoid stabilized by a 4-substituted resorcinol derivative;
b. a skin benefit agent; and
c. a cosmetically acceptable vehicle;
wherein said terpenoid is present in an amount of about 0.0001 wt % to about 5 wt % of said cosmetic composition; and
wherein the weight ratio of said terpenoid to said 4-substituted resorcinol derivative is about 10,000;
1 to about 1;
100,000.
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Specification