Color cosmetic with high coverage and naturalness
View Patent ↗Described herein is a cosmetic composition comprising a mixture of metal oxide pigments having different shapes and sizes which provides high coverage and a natural look upon application.
1. A cosmetic composition comprising: (i) a first pigment component comprising metal oxide particles bonded to an alumina platelet by an alkyl silane, (ii) a second pigment component comprising metal oxide particles, wherein said second pigment component comprises substantially spherical titanium dioxide particles whose surface is modified with alkylsilane groups, and (iii) a crosslinked silicone elastomer gelling agent.
2. The cosmetic composition of claim 1 further comprising calcium carbonate powder having a cubic crystalline form and an average particle size between about 0.1 and about 20 microns.
3. The cosmetic composition according to claim 1 , wherein the weight ratio of said first pigment to said second pigment, is from about 1:5 to about 5:1.
4. The cosmetic composition according to claim 1 , wherein the surface of said substantially spherical titanium dioxide particles is modified with triethoxycaprylylsilane.
5. The cosmetic composition according to claim 1 , wherein the metal oxide particles are bonded to said alumina platelet with triethoxycaprylylsilane.
6. The cosmetic composition according to claim 1 , wherein the weight ratio of said first pigment to said second pigment, is from about 1:2.5 to about 2.5:1.
7. The cosmetic composition according to claim 1 , wherein said first pigment component comprises titanium dioxide particles bonded to an alumina platelet and said second pigment component comprises substantially spherical particles bonded to a substantially spherical polymethyl methacrylate substrate.
8. The cosmetic composition of claim 7 further comprising calcium carbonate powder having a cubic crystalline form and an average particle size between about 0.1 and about 20 microns.
9. The cosmetic composition according to claim 6 , wherein the crosslinked silicone gelling agent comprises a particulate.
10. The cosmetic composition according to claim 9 , wherein the particulate is boron nitride.
11. The cosmetic composition according to claim 10 , wherein the crosslinked silicone gelling agent comprises a cyclic epoxide crosslinker.
12. The cosmetic composition according to claim 1 , wherein the crosslinked silicone gelling agent has the structure:
where R is a C 1 -C 20 hydrocarbon radical, x is from 2 to 4, and m is generally from 1 to about 100, and n and o are generally from 0 to 100, with at least one of n or o being greater than zero.
13. The cosmetic composition according to claim 12 , wherein the crosslinked silicone gelling agent comprises boron nitride.
14. The cosmetic composition of claim 1 , further comprising one or more iron oxide pigments.
15. A cosmetic foundation comprising the cosmetic composition of claim 1 .
16. A method of improving the uniformity of a cosmetic applied on a skin surface as viewed by an observer of the cosmetic on said skin surface at different angles, comprising topically applying to the skin surface a composition according to claim 1 .
17. The method of claim 16 , wherein the composition of claim 12 is applied to the skin.