The present invention refers to dermocosmetic formulations for use against skin blemishes, especially melasma. The present invention minimizes or avoids the formation of melasma by acting in several stages of melanogenesis. A preferred embodiment of the invention refers to dermocosmetic formulations that act in several stages of melanogenesis, preferably, in the gene expression of tyrosinase-related proteins (TYRP-1 and TYRP-2) and Endothelin-1 (ET-1). Another embodiment of the invention refers to the cosmetic composition containing a combination of active ingredients that act on the gene expression of tyrosinase-related proteins (TYRP-1 and TYRP-2) and Endothelin-1 (ET-1). In another preferred embodiment of the invention, the use of said cosmetic composition to combat melasma is described.

The present invention refers to dermocosmetic formulations for use against skin blemishes, especially melasma. The present invention minimizes or avoids the formation of melasma by acting in several stages of melanogenesis. A preferred embodiment of the invention refers to dermocosmetic formulations that act in several stages of melanogenesis, preferably, in the gene expression of tyrosinase-related proteins (TYRP-1 and TYRP-2) and Endothelin-1 (ET-1). Another embodiment of the invention refers to the cosmetic composition containing a combination of active ingredients that act on the gene expression of tyrosinase-related proteins (TYRP-1 and TYRP-2) and Endothelin-1 (ET-1). In another preferred embodiment of the invention, the use of said cosmetic composition to combat melasma is described.

A Macadamia integrifolia whitening extract and a preparation method thereof are disclosed. The preparation method includes: S1: carrying out a hot extraction on a crushed Macadamia integrifolia green peel using an ethanol solution as an extraction solvent to obtain a crude green peel extract; then enzymatically treating the crude green peel extract using a snailase to obtain a enzymatic hydrolysate; finally extracting the enzymatic hydrolysate using a petroleum ether, and taking an aqueous phase to obtain a green peel extract; S2: carrying out a hot extraction on crushed Sichuan lovase rhizome decoction pieces using an ethanol solution as an extraction solvent to obtain a Sichuan lovase rhizome extract; S3: dispersing the green peel extract and the Sichuan lovase rhizome extract in water to obtain a whitening extract.

A Macadamia integrifolia whitening extract and a preparation method thereof are disclosed. The preparation method includes: S1: carrying out a hot extraction on a crushed Macadamia integrifolia green peel using an ethanol solution as an extraction solvent to obtain a crude green peel extract; then enzymatically treating the crude green peel extract using a snailase to obtain a enzymatic hydrolysate; finally extracting the enzymatic hydrolysate using a petroleum ether, and taking an aqueous phase to obtain a green peel extract; S2: carrying out a hot extraction on crushed Sichuan lovase rhizome decoction pieces using an ethanol solution as an extraction solvent to obtain a Sichuan lovase rhizome extract; S3: dispersing the green peel extract and the Sichuan lovase rhizome extract in water to obtain a whitening extract.

Provided is a method for whitening a skin of a subject administrating a whitening composition that includes a compound including a structural unit represented by Chemical Formula A and including at least one hydroxyl group and at least one carboxyl group as an active ingredient, to the subject.

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In Chemical Formula 1, each substituent is as defined in the specification.

Provided is a method for whitening a skin of a subject administrating a whitening composition that includes a compound including a structural unit represented by Chemical Formula A and including at least one hydroxyl group and at least one carboxyl group as an active ingredient, to the subject.

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In Chemical Formula 1, each substituent is as defined in the specification.

A cosmetic composition including (a) from about 2 to about 20 wt. % of ascorbic acid; (b) di-t-butyl pentaerythrityl tetrahydroxycinnamate; (c) hydroxyacetophenone; and (d) a chelating agent; and wherein the cosmetic composition is an oil-in-water emulsion, and all weight percentages are based on the total weight of the cosmetic composition. Methods for treating damaged skin with cosmetic compositions are also disclosed herein.

A cosmetic composition including (a) from about 2 to about 20 wt. % of ascorbic acid; (b) di-t-butyl pentaerythrityl tetrahydroxycinnamate; (c) hydroxyacetophenone; and (d) a chelating agent; and wherein the cosmetic composition is an oil-in-water emulsion, and all weight percentages are based on the total weight of the cosmetic composition. Methods for treating damaged skin with cosmetic compositions are also disclosed herein.

The present invention relates to cosmetic compositions having antioxidant properties and suitable for any type of skin.

The present invention relates to a formulation comprising blends of formulations (or colloidal dispersions) and its topical application. The formulation comprises at least two different types of colloidal dispersion comprising deformable colloidal particles, wherein the deformable colloidal particles comprise a non-ionic surfactant and/or a phospholipid. The deformable colloidal particles of the invention may comprise an agent of interest (AOI) or may be free of an AOI. The formulation may comprise an AOI that is not associated with the deformable colloidal particles. The present invention also includes kits comprising the formulation of the present invention and the use of the formulation in medicine, skin care and cosmetics.