Cosmetic compositions for bleaching the skin

Patent metadata

Field	Value
Publication number	US-11026877-B2
Application number	US-201615373926-A
Country	US
Kind code	B2
Filing date	Dec 9, 2016
Priority date	Jun 11, 2014
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

The invention relates to a cosmetic composition for bleaching the skin, which includes a) at least one oily plant extract from the Glycyrrhiza genus and b) at least one ascorbic acid ester. The invention further relates to the cosmetic, nontherapeutic use of the cosmetic composition according to the invention to treat excessive pigmentation, pigmentation disorders, age spots, and/or post-inflammatory hyperpigmentation of the skin, and to a method for producing a cosmetic skin-bleaching composition in the form of an O/W or a W/O emulsion, wherein an oily extract from licorice roots is dissolved in the water phase by the addition of an ascorbic acid ester.

First claim

What is claimed is:

1. A cosmetic composition for skin bleaching, comprising
a) at least one oily plant extract from a root of Glycyrrhiza glabra using isopropyl myristate as the extracting agent, and
b) ascorbyl tetraisopalmitate,
wherein the weight ratio of components a) to b) is 10:1.

2. The cosmetic composition according to claim 1 , wherein the ascorbyl tetraisopalmitate b) comprises 0.005 to 1% by weight in terms of the total weight of the composition.

3. The cosmetic composition according to claim 1 , wherein the ascorbyl tetraisopalmitate b) comprises 0.01 to 0.2% by weight in terms of the total weight of the composition.

4. The cosmetic composition according to claim 1 , further comprising allantoin in a weight proportion of 0.01 to 5% by weight based on the total weight of the composition.

5. The cosmetic composition according to claim 1 , further comprising allantoin in a weight proportion of 0.1 to 1% by weight based on the total weight of the composition.

6. The cosmetic composition according to claim 1 , further comprising at least one silicone in a weight proportion of 0.05 to 20% by weight based on the total weight of the composition.

7. The cosmetic composition according to claim 1 , further comprising at least one silicone in a weight proportion of 0.5 to 12.5% by weight based on the total weight of the composition.

8. The cosmetic composition according to claim 1 , further comprising at least one active antiperspirant substance in a weight proportion of 3 to 40% by weight based on the total weight of the composition.

9. The cosmetic composition according to claim 1 , wherein the composition is in the form of a solution, an emulsion of a water-in-oil (W/O) or oil-in-water (O/W) type, a multiple emulsion of a water-in-oil-in-water (W/O/W) or oil-in-water-in-oil (O/W/O) type, a hydrodispersion or lipid dispersion, a gel, a solid stick, and/or an aerosol.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Doering Thomas
• Schevardo Natascha
• Giesen Melanie

Classifications

• A61K8/25

  Silicon; Compounds thereof · CPC title

• A61K8/4973

  with oxygen as the only hetero atom · CPC title

• A61K8/4946

  Imidazoles or their condensed derivatives, e.g. benzimidazoles · CPC title

• A61K8/9789

  Magnoliopsida [dicotyledons] · CPC title

• A61Q15/00

  Anti-perspirants or body deodorants (deodorisation of air A61L9/00) · CPC title