Processes for Reducing the Appearance of Pastiness or Ashiness on Skin
Processes for reducing the appearance of ashiness or pastiness on skin by applying thereto a cosmetic composition comprising transparent iron oxide particles, iron-containing titanium dioxide particles, and a cosmetically acceptable carrier. These processes are useful to provide coverage of skin imperfections and/or skin tonal variations and/or skin discoloration surrounding the eyes on different types of skin, while, at the same time, retaining a natural skin appearance.
1 . A process for reducing the appearance of ashiness on darker skin by applying thereto a cosmetic composition comprising:
(a) iron oxide particles having an average surface area from about 30 m 2 /g to about 150 m 2 /g;
(b) iron-containing titanium dioxide particles having an average surface area from about 1 m 2 /g to about 30 m 2 /g and comprising from about 1% to about 15% iron by weight of the titanium dioxide; and
(c) a cosmetically acceptable carrier.
2 . The process of claim 1 , wherein the iron-containing titanium dioxide particles have an average primary particle size of at least about 105 nm.
3 . The process of claim 1 , wherein the composition comprises from about 0.05% to about 20% iron-containing titanium oxide particles by weight of the total composition.
4 . The process of claim 1 , wherein the iron-containing titanium dioxide particles comprise a coating being substantially free of iron and wherein the iron is distributed throughout the titanium dioxide particles.
5 . The process of claim 1 , wherein the iron oxide particles have an average primary particle size of less than or equal to about 100 nm.
6 . The process of claim 1 , wherein the composition comprises from about 0.05% to about 10% iron oxide particles by weight of the total composition.
7 . The process of claim 1 , wherein the cosmetically acceptable carrier is a water-in-silicone emulsion.
8 . The process of claim 1 , wherein the composition comprises at least one hydrophobic organic sunscreen active being a cinnamic derivative.
9 . The process of claim 1 , wherein the composition comprises a cross-linked organopolysiloxane elastomer.
10 . The process of claim 1 , wherein the composition is a foundation and/or a composition to correct skin discoloration surrounding the eye.
11 . A process for reducing the appearance of pastiness on lighter skin by applying thereto a cosmetic composition comprising:
(a) iron oxide particles having an average surface area from about 30 m 2 /g to about 150 m 2 /g;
(b) iron-containing titanium dioxide particles having an average surface area from about 1 m 2 /g to about 30 m 2 /g and comprising from about 1% to about 15% iron by weight of the titanium dioxide; and
(c) a cosmetically acceptable carrier.
12 . The process of claim 11 , wherein the iron-containing titanium dioxide particles have an average primary particle size of at least about 105 nm.
13 . The process of claim 11 , wherein the composition comprises from about 0.05% to about 20% iron-containing titanium oxide particles by weight of the total composition.
14 . The process of claim 11 , wherein the iron-containing titanium dioxide particles comprise a coating being substantially free of iron and wherein the iron is distributed throughout the titanium dioxide particles.
15 . The process of claim 11 , wherein the iron oxide particles have an average primary particle size of less than or equal to about 100 nm.
16 . The process of claim 11 , wherein the composition comprises from about 0.05% to about 10% iron oxide particles by weight of the total composition.
17 . The process of claim 11 , wherein the cosmetically acceptable carrier is a water-in-silicone emulsion.
18 . The process of claim 11 , wherein the composition comprises at least one hydrophobic organic sunscreen active being a cinnamic derivative.
19 . The process of claim 11 , wherein the composition comprises a cross-linked organopolysiloxane elastomer.
20 . The process of claim 11 , wherein the composition is a foundation and/or a composition to correct skin discoloration surrounding the eye.