# US 12,472,132 B2 · Topical scalp composition

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- Number: US 12,472,132 B2
- Document ID: US12472132B2
- Status: Granted
- Kind: B2
- Application number: 17/536,191
- Filed: 2021-11-29
- Published: 2022-03-17
- Granted: 2025-11-18
- Earliest claimed: 2019-07-09
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Debbie Lynn Hartsell; Kim Lynn Webb; Kathleen Marie Kerr; Karen Marie Osorio; Matthew Joseph Linser; Emma Lynne Klingman
- Web page: https://patentgrep.com/patent/US12472132B2

## CPC

- A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain}
- A61P 17/04: Antipruritics
- A45D 19/00: Devices for washing the hair or the scalp; Similar devices for colouring the hair
- A45D 34/04: Appliances specially adapted for applying liquid, e.g. using roller or ball
- A45D 34/042: {using a brush or the like}
- A61K 8/39: Derivatives containing from 2 to 10 oxyalkylene groups
- A61K 8/42: Amides
- A61K 8/463: {containing sulfuric acid derivatives, e.g. sodium lauryl sulfate}
- A61K 8/4926: {having six membered rings}
- A61K 8/494: {with more than one nitrogen as the only hetero atom}
- A61P 17/06: Antipsoriatics
- A61P 17/16: Emollients or protectives, e.g. against radiation
- A61Q 5/00: Preparations for care of the hair
- A61Q 19/007: {Preparations for dry skin}
- A45D 2019/0033: {Processes for treating the scalp}
- A61K 2800/20: Chemical, physico-chemical or functional or structural properties of the composition as a whole
- A61K 2800/30: Characterized by the absence of a particular group of ingredients
- A61K 2800/75: Anti-irritant
- A61K 2800/87: Application Devices; Containers; Packaging
- 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)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

The present disclosure relates to topical scalp care compositions that may be used as leave-on treatments and comprise one or more actives useful for treating symptoms of itch, redness, flaking, and dryness of the scalp. The present disclosure further relates to systems and methods of treating symptoms of itch, redness, flaking, and dryness of the scalp using such topical scalp care compositions.

## Claims

### Claim 1

A system for treating scalp itch, flaking, scaling, plaques, and/or dryness comprising:
a. a composition comprising laureth-9, from 92% to 95% by weight of the composition of water, and less than about 5% of an ionic surfactant, ethanol, methanol, iso-propanol, n-propanol, or a mixture thereof, wherein said composition has a pH of about 3.0 to about 6.9 and a viscosity of about 1,500 cPs to about 20,000 cPs, and wherein said composition is a leave-on scalp composition and is free of an oil; and
b. an applicator comprising a reservoir configured to contain about 25 g to about 600 g of the composition, and one or more nozzles, wherein each nozzle has at least one opening having an area of about 0.2 mm2 to about 12 mm2.

### Claim 2 (depends on 1)

The system according to claim 1, wherein the applicator has twenty or fewer nozzles.

### Claim 3 (depends on 1)

The system according to claim 1, wherein each opening is substantially circular and has a diameter of about 0.5 mm to about 4 mm.

### Claim 4 (depends on 1)

The system according to claim 1, where the total area of all the openings is about 0.2 mm2 to about 20 mm2.

### Claim 5 (depends on 1)

The system according to claim 1, wherein the composition is shear-thinning.

### Claim 6 (depends on 1)

The system according to claim 1, wherein the composition is transparent or translucent.

### Claim 7 (depends on 1)

The system according to claim 1, wherein the applicator is transparent or translucent.

### Claim 8 (depends on 1)

The system according to claim 1, wherein the composition further comprises an organic acid and/or a salt thereof.

### Claim 9 (depends on 1)

The system according to claim 1, wherein the composition is substantially odorless.

### Claim 10 (depends on 1)

The system according to claim 1, wherein the length of each nozzle is about 8 mm to about 100 mm.

### Claim 11 (depends on 1)

The system according to claim 1, wherein the external width of each nozzle is about 1 mm to about 20 mm.

### Claim 12 (depends on 1)

The system according to claim 1, wherein the applicator has one nozzle, wherein the nozzle has one opening having an area of about 0.2 mm2 to about 10 mm2.

### Claim 13 (depends on 1)

The system according to claim 1, wherein the composition comprises about 0.1% to about 10% laureth-9, less than about 5% of ethanol, methanol, iso-propanol, n-propanol, or a mixture thereof, and less than about 5% of an ionic surfactant selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate, TEA lauryl sulfate, sodium lauroyl sarcosinate, sodium stearate, sodium olefin sulfonate, disodium laureth sulfosuccinate, disodium oleamine sulfosuccinate, sodium dioctyl sulfosuccinate, isethionates, taurates, cetrimonium bromide, cetylpyridinium chloride, sodium lauriminodipropionate, disodium lauroamphodiacetate, cocamido propyl betaine, and mixtures thereof.

### Claim 14 (depends on 1)

The system according to claim 1, wherein the composition further comprises about 0.1% to about 10% of a xanthine compound, about 0.1% to about 25% of a vitamin B3 compound, about 0.01% to about 3% of a panthenol compound, about 0.1% to about 10% of salicylic acid, about 0.000001% to about 5% of Centella asiatica, about 0.00001% to about 25% of an Avena (oat) extract, or a combination thereof.

### Claim 15 (depends on 1)

The system according to claim 1, wherein the composition further comprises a thickener selected from the group consisting of carboxylic acid polymers, crosslinked poly(meth)acrylate polymers, polyacrylamide polymers, polysaccharides, gums, crosslinked vinyl ether/maleic anhydride copolymers, crosslinked poly(N-vinylpyrrolidones), and mixtures thereof.

### Claim 16 (depends on 1)

The system according to claim 1, wherein the one or more nozzles is a single nozzle with a diameter from about 0.5 mm to about 4 mm and a lower bound for the viscosity is defined by: viscosity (cps)>1383 (cps/mm)×nozzle diameter (mm)+1010 (cps).

### Claim 17 (depends on 1)

A method of treating a scalp condition selected from itch, flaking, scaling, plaques, and dryness of the scalp comprising the steps of providing the system of claim 1 and applying the composition onto the scalp.

### Claim 18

A system for treating scalp itch, flaking, scaling, plaques, and/or dryness comprising:
a. a composition comprising laureth-9, from 92% to 95% by weight of the composition of water, about 0.1% to about 10% of a xanthine compound, about 0.1% to about 25% of a vitamin B3 compound, about 0.01% to about 3% of a panthenol compound, about 0.1% to about 10% of salicylic acid, about 0.000001% to about 5% of Centella asiatica, about 0.00001% to about 25% of an Avena (oat) extract, or a combination thereof, and less than about 5% of an ionic surfactant, ethanol, methanol, iso-propanol, n-propanol, or a mixture thereof, wherein said composition has a pH of about 3.0 to about 6.9 and a viscosity of about 1,500 cPs to about 20,000 cPs, and wherein said composition is a leave-on scalp composition; and
b. an applicator comprising a reservoir configured to contain about 25 g to about 600 g of the composition, and one or more nozzles, wherein each nozzle has at least one opening having an area of about 0.2 mm2 to about 12 mm2.

### Claim 19 (depends on 18)

The system of claim 18, wherein the composition is substantially free of an oil.