Granted Patent B2

US 9,216,145 · App. 13/457,173 · Granted Dec 22, 2015

Abstract

Claims (11)

1. A semi-permanent, wax-free concealer consisting essentially of:

a. from about 10% to about 80% by weight of a non-aqueous carrier which includes at least one of a silicone gum and polydimethylsiloxane;

b. from about 15% to about 35% by weight of a film-forming tackifier comprising pentaerythrityl hydrogenated rosinate at between 0.1% and 99.9% by weight based on the weight of the tackifier and tall oil glyceride at between 99.9% to 0.1% by weight based on the weight of the tackifier; and

c. from about 0.1% to about 20%, by weight, of iron oxide colorant particles having a particle size less than 30 microns;

d. from 1% to 25% by weight of disteardimonium hectorite particles having a particle size less than 10 micron as a thickener;

wherein the film-forming tackifier and the particles are dispersed in the carrier to form a single-phase anhydrous dispersion, wherein the weight ratio of tackifier to particles in the anhydrous dispersion is from about 2:3 to about 100:1; and the volume concentration of solid particles present in the composition is less than the critical pigment volume concentration; wherein said concealer has a Delta L value, of less than 20.0 according to the Rub Test.

2. The semi-permanent concealer of claim 1 , further comprising a skin-conditioning agent.

3. The semi-permanent concealer of claim 2 , wherein the skin conditioning agent is an alpha-hydroxycarboxylic acid, a beta-hydroxycarboxylic acid, salts of these acids, or combinations thereof.

4. A method for treating a target skin area, the method comprising:

a. identifying a target area of skin in need of treatment; and

b. applying the semi-permanent concealer of claim 1 to the target area.

Assignments (14)