Silicone containing skin care compositions having improved oil control

• US 5,380,528 A
• Filed: 09/15/1993
• Issued: 01/10/1995
• Est. Priority Date: 11/30/1990
• Status: Expired due to Fees

• Current Assignee: Richardson-Vicks, Inc. (The Procter & Gamble Company)
• Original Assignee: Richardson-Vicks, Inc. (The Procter & Gamble Company)
• Inventors: Alban, Noelle C., Deckner, George E.
• Primary Examiner(s): Webman, Edward J.
• Application Number:
  US08/121,672
• Time in Patent Office: 482 Days
• Field of Search: 424/401, 424/78.03, 514/844-847, 514/877, 514/864
• US Class Current: 424/401
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61K 8/892 modified by a hydroxy group, e.g. dimethiconol
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/008 Preparations for oily skin

Abstract

A skin care composition in the form of a substantially oil-free aqueous gel comprising a water-soluble humectant, a hydrophilic gelling agent, a specific silicone component and a specific cationic surfactant component. The compositions provide improved oil control along with improved skin feel and residue characteristics together with excellent moisturizing, emolliency, rub-in and absorption characteristics.

Claims

1. A skin care composition in the form of an aqueous gel containing less than about 1% of a hydrocarbon oil or wax comprising:

(a) from about 0.5% to about 20% by weight of a water-soluble humectant;

(b) from about 0.1% to about 20% by weight of a hydrophilic gelling agent;

(c) from about 1.0% to about 10% by weight of a silicone component consisting essentially of

i) a dimethiconol of the formula;

##STR7## where n is from about 2700 to about 4500, and wherein the molecular weight is from about 200,000 to about 300,000; and

ii) a silicone fluid carrier having a viscosity from about 0.65 cps. to about 100 cps.

wherein the ratio of i) to ii) is from about 10;

90 to about 20;

80 and wherein said component has a final viscosity of from about 500 cps. to about 10,000 cps.; and

(d) from about 0.01 to about 5% of a cationic N,N,N-trialkylaminoalkylene gluconamide surfactant of the formula ##STR8## wherein R=alkyl, X=Cl^- or Br^-, and n is an integer from 2 to 4.

2. A composition according to claim 1 wherein the dimethiconol component has a molecular weight of from about 240,000 to about 260,000 and n is from about 3200 to about 4500.

3. A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum, distribution of a substantially oil-free aqueous gel composition according to claim 2.

4. A composition according to claim 2 wherein the dimethicone has a molecular weight of from about 480,000 to 520,000 and wherein the cationic surfactant is γ

-glyconamidopropyl dimethyl 2-hydroxyethyl ammonium chloride.

5. A composition according to claim 4 wherein the silicone carrier is a non-volatile silicone fluid selected from the group consisting of polyalkyl siloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, polyether siloxanes, and mixtures thereof.

6. A composition according to claim 5 which further comprises from 0.1% to 10% by weight of a water-soluble polyglycerylmethacrylate lubricant having a viscosity (10% aqueous solution, 20°

C., Brookfield RVT) of less than 30,000 cps, and comprising from 1% to 10% by weight of glycerine.

7. A composition according to claim 6 wherein the polyglycerylmethacrylate lubricant is a hydrate or clathrate formed by the reaction of sodium glycerate with a methacrylic acid polymer.

8. A composition according to claim 7 wherein the hydrophilic gelling agent is present a level from about 0.2% to about 2% and has a neutralized viscosity of at least about 10,000 cps.

9. A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil-free aqueous gel composition according to claim 8.

10. A composition according to claim 8 comprising from 0.3% to 1% by weight of the polyglycerylmethacrylate lubricant.

11. A composition according to claim 10 having a viscosity (20°

C., neat, Brookfield RVT) of from 4000 to 300,000 cps.

12. A composition according to claim 11 wherein the neutralized gelling agent has viscosity (1% aqueous solution, 20°

C., Brookfield RVT) of at least 80,000 cps.

13. A composition according to claim 12 wherein the gelling agent is a colloidally water-soluble carboxyvinyl polymer of acrylic acid cross-linked with from about 0.2% to 0.4% of a cross-linking agent selected from allylpentaerythritol, trimethylolpropane diallylether, and allyl sucrose.

14. A composition according to claim 13 wherein the carboxylic acid copolymer is selected from the group consisting of carbomer, acrylates/C10-30 alkyl acrylate crosspolymer, and mixtures thereof.

15. A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil-free aqueous gel composition according to claim 14.

16. A composition according to claim 14 wherein the weight ratio of carboxylic acid copolymer to gluconamide is from about 1:

10 to about 10;

1.

17. A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil-free aqueous gel composition according to claim 16.

18. A composition according to claim 16 wherein said emulsion further comprises from about 0.1% to about 20% of a pharmaceutical active.

19. A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil -free aqueous gel composition according to claim 1.