# US 2017/0281503 A1 · Methods and compositions for providing broad spectrum photo protection using antioxidants

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- Number: US 2017/0281503 A1
- Document ID: US20170281503A1
- Status: Published application
- Kind: A1
- Application number: 15/087,662
- Filed: 2016-03-31
- Published: 2017-10-05
- Earliest claimed: 2016-03-31
- Assignees: L'oreal
- Applicants: L'oreal
- Inventors: Zhi Pan; Maolin Guo; Jean-Thierry Simonnet
- Web page: https://patentgrep.com/patent/US20170281503A1

## CPC

- A61K 8/602: {Glycosides, e.g. rutin}
- A61K 8/365: Hydroxycarboxylic acids; Ketocarboxylic acids
- A61K 8/4926: {having six membered rings}
- A61K 8/498: {having 6-membered rings or their condensed derivatives, e.g. coumarin}
- A61K 8/9789: Magnoliopsida [dicotyledons]
- A61K 8/99: from microorganisms other than algae or fungi, e.g. protozoa or bacteria
- A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
- A61K 2800/5922: At least two compounds being classified in the same subclass of A61K8/18
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

The present disclosure relates to methods and compositions for providing at least broad spectrum photo protection to skin, which includes protection from at least infrared (IR) radiation and/or visible light. The methods typically entail applying to skin a cosmetic composition comprising: (a) one or more antioxidants selected from the group consisting of baicalin, Venuceane™, ferulic acid, polydatin, silymarin, punica granatum extract, mango leaf extract, soliprin, catechin, hesperetin, astilbin, and DHC V; (b) optionally, one or more solubilizers; and (c) a cosmetically acceptable carrier; wherein the combination of (a), optional (b), and (c) alone, provide at least broad spectrum protection from both infrared (IR) radiation and visible light. UV filters can also optionally be included to provide additional protection from UV light.

## Claims

### Claim 1

A method for providing broad spectrum photo protection to skin comprising topically applying to the skin of a subject a cosmetic composition comprising:
(a) one or more antioxidants selected from the group consisting of baicalin, Venuceane™, ferulic acid, polydatin, silymarin, punica granatum extract, mango leaf extract, Soliprin™, catechin, hesperetin, astilbin, and DHC V;
(b) optionally, one or more solubilizers; and
(c) a cosmetically acceptable carrier;
wherein the combination of (a), optional (b), and (c) alone, provides at least broad spectrum protection from both infrared (IR) radiation and visible light.

### Claim 2 (depends on 1)

The method of claim 1, wherein the one or more antioxidants of (a) comprises baicalin and the compositions comprises the one or more solubilizers of (b).

### Claim 3 (depends on 1)

The method of claim 1 where the one or more antioxidants of (a) comprises polydatin and the composition comprises the one or more solubilizers of (b).

### Claim 4 (depends on 1)

The method of claim 1 wherein the total amount of the antioxidant(s) of (a) in the composition is 0.001 to 20 wt. %, based on the total weight of the composition.

### Claim 5 (depends on 1)

The method of claim 1, wherein the composition comprises the one or more solubilizers of (b).

### Claim 6 (depends on 5)

The method of claim 5, wherein the one or more solubilizers of (b) comprises one or more cosmetically acceptable hydrotropes selected from the group consisting of nicotinamide, caffeine, sodium PCA, sodium salicylate, urea, hydroxyethyl urea.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
(d) one or more emulsifiers.

### Claim 8 (depends on 7)

The method of claim 7, wherein the total amount of the one or more emulsifiers of (d) in the composition is 0.001 to 10 wt. %, based on the total weight of the composition.

### Claim 9 (depends on 7)

The method of claim 7, wherein the one or more emulsifiers of (d) comprises a nonionic emulsifier.

### Claim 10 (depends on 9)

The method of claim 9, wherein the nonionic emulsifier is selected from a polyol ester, a glycerol ether, an oxyethylenated, an oxypropylenated ether, an ethylene glycol polymer, and combinations thereof.

### Claim 11 (depends on 9)

The method of claim 9, wherein the nonionic emulsifer comprises a combination of a polyol ester and an ethylene glycol polymer.

### Claim 12 (depends on 1)

The method of claim 1, further comprising:
(e) one or more UV filters.

### Claim 13 (depends on 12)

The method of claim 12, wherein the total amount of the one or more UV filters of (e) is 0.001 to 30 wt. %, based on the total weight of the composition.

### Claim 14 (depends on 12)

The method of claim 12, wherein the one or more UV filters of (e) are selected from the group consisting of a para-aminobenzoic acid derivative, a salicylic derivative, a cinnamic derivative, a benzophenone or an aminobenzophenone, an anthranillic derivative, a β,β-diphenylacrylate derivative, a benzylidenecamphor derivative, a phenylbenzimidazole derivative, a benzotriazole derivative, a triazine derivative, a bisresorcinyl triazine, an imidazoline derivative, a benzalmalonate derivative, a 4,4-diarylbutadiene derivative, a benzoxazole derivative, a merocyanine, malonitrile or a malonate diphenyl butadiene derivative, and a chalcone.

### Claim 15 (depends on 1)

The method of claim 1, wherein the cosmetically acceptable carrier of (c) comprises water, an organic solvent, or a mixture thereof.

### Claim 16 (depends on 1)

The method of claim 1, further comprising:
(f) one or more skin active ingredients.

### Claim 17 (depends on 1)

The method of claim 1, wherein the composition further comprises:
(g) one or more silicon oils.

### Claim 18 (depends on 17)

The method of claim 17, wherein the one or more silicon oils of (g) are selected from the group consisting of polydimethylsiloxanes (PDMSs), polydimethylsiloxanes comprising alkyl or alkoxy groups which are pendent and/or at the end of the silicone chain, which groups each contain from 2 to 24 carbon atoms, or phenyl silicones, such as phenyl trimethicones, phenyl dimethicones, phenyl(trimethylsiloxy)diphenylsiloxanes, diphenyl dimethicones, diphenyl(methyldiphenyl)trisiloxanes and (2-phenylethyl)trimethylsiloxysilicates.

### Claim 19 (depends on 16)

The method of claim 16, wherein the one or more silicone oils of (g) comprises dimethicone.

### Claim 20

A composition for providing broad spectrum photo protection to skin comprising topically applying to the skin of a subject a cosmetic composition comprising:
(a) one or more antioxidants selected from the group consisting of baicalin, Venuceane™, ferulic acid, polydatin, silymarin, punica granatum extract, mango leaf extract, soliprin, catechin, hesperetin, astilbin, and DHC V;
(b) optionally, one or more solubilizers; and
(c) a cosmetically acceptable carrier;
wherein the combination of (a), optional (b), and (c) alone, provides at least broad spectrum protection from both infrared (IR) radiation and visible light.