Skin lightening compositions
AssigneeMary Kay Inc.
InventorsGopa Majmudar, Wanli Zhao
Life of this patent
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Abstract
The present invention concerns methods and compositions that can be used, for example, in skin whitening or hyperpigmentation applications. The composition, in non-limiting aspects, can include a vitamin C derivative, niacinamide, an extract formulation comprising cucumber and lemon extract or compounds that include the following formulas: where R1, R2, R3, R4, and R5 are independently an H, an alkyl group, a hydroxyalkyl group, or a carboxyalkyl group where R1, R2, R3, R4, and R5 are independently an H, an alkyl group, a hydroxyalkyl group, or a carboxyalkyl group and where x is an integer from 1 to 30.
Claims36
A skin-lightening composition comprising at least two of the following:
- (a) a vitamin C derivative;
- (b) niacinamide;
- (c) a composition comprising cucumber extract and lemon extract;
- (d) a compound comprising the formula:
- where R1, R2, R3, R4, and R5 are independently an H, an alkyl group, a hydroxyalkyl group, or a carboxyalkyl group, or
- (e) a compound comprising the formula:
- where R1, R2, R3, R4, and R5 are independently an H, an alkyl group, a hydroxyalkyl group, or a carboxyalkyl group, and
- where x is an integer from 1 to 30.
5-12. (canceled)
19-28. (canceled)
33-44. (canceled)
49-63. (canceled)
66-77. (canceled)
79-87. (canceled)
96-100. (canceled)
Dependencies are inferred from the claim text.