Cosmetic composition with a lightening effect

• US 7,780,955 B2
• Filed: 11/14/2005
• Issued: 08/24/2010
• Est. Priority Date: 11/12/2004
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Cassin, Guillaume
• Primary Examiner(s): Wang; Shengjun
• Assistant Examiner(s): Carter; Kendra D
• Application Number:
  US11/272,318
• Publication Number:
  US 20060134033A1
• Time in Patent Office: 1,744 Days
• Field of Search: 424/69, 424/63
• US Class Current: 424/63
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/436 Interference pigments, e.g. Iridescent, Pearlescent
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 1/04 for lips
• CPC Class Codes: A61Q 1/08 for cheeks, e.g. rouge

Abstract

A cosmetic composition for making up and/or caring for the skin and/or the lips, has, in a physiologically acceptable medium, at least interference particles with a volume-average size of less than 40 μm and at least one filler such that the composition also has a lightness L* of greater than 60 and a saturation C* of less than 10.

Claims

1. A cosmetic composition for making up and/or caring for skin and/or lips, comprising:

interference particles having a volume-average size of less than about 40 μ

m, wherein the interference particles comprise at least one nacre selected from a group consisting of mica/tin oxide/titanium oxide-type nacres and mica/iron oxide/titanium oxide-type nacres; and

at least one filler having matting power selected from the group consisting of porous silica microparticles, hollow hemispherical silicone particles, and mixtures thereof;

wherein;

said filler is such that it gives said composition a matting power of less than 0.8;

the interference particles and the at least one filler are provided in a physiologically acceptable medium;

the composition has a lightness L* of greater than about 60 and a saturation C* of less than about 10; and

a ratio of a weight of the at least one filler to a weight of the interference particles is greater than or equal to 0.8.

2. The composition according to claim 1, wherein the composition has a saturation C* of less than about 5.

3. The composition according to claim 1, wherein the composition has a lightness L* of greater than about 75.

4. The composition according to claim 1, wherein the interference particles have a volume-average size of less than about 30 μ

m.

5. The composition according to claim 1, wherein the interference particles are present in an amount of less than about 15% by weight relative to a total weight of the composition.

6. The composition according to claim 1, wherein the at least one filler has a volume-average particle size substantially equivalent to the volume-average particle size of the interference particles.

7. The composition according to claim 1, wherein the at least one filler has a refractive index of about 2.2 or less.

8. The composition according to claim 1, further comprising at least one additional filler selected from the group consisting of talc, mica, kaolin, colloidal silica, poly-β

-alanine, polyethylene, lauroyllysine, starch, boron nitride, precipitated calcium carbonate, magnesium carbonate, magnesium hydrogen carbonate, barium sulfate, hydroxyapatite, glass or ceramic microcapsules, metal soaps derived from organic carboxylic acids containing from 8 to 22 carbon atoms, and mixtures thereof.

9. The composition according to claim 1, wherein the composition comprises at least one aqueous phase.

10. The composition according to claim 1, wherein the composition comprises at least one fatty phase.

11. The composition according to claim 1, further comprising at least one adjuvant selected from the group consisting of dyes, pigments, optical brighteners, fragrances, preserving agents, physical and chemical sunscreens, sequestrants, pH regulators (acids or bases), and mixtures thereof.

12. The composition according to claim 1, further comprising a film-forming polymer.

13. The composition according to claim 1, wherein the composition is in a form selected from the group consisting of a fluid paste, a serum, a direct, an inverse or multiple emulsion, and an aqueous gel.

14. A method for obtaining a lightening and/or homogenizing effect on skin and/or lips, comprising applying the composition according to claim 1 to the skin and/or lips in an amount sufficient to provide the lightening and/or homogenizing effect.

15. A method for covering skin dyschromia, comprising applying the composition of claim 1 to cover an area of skin having dyschromia.

16. A method for making up skin and/or the lips, comprising applying the composition according to claim 1 to the skin and/or lips.

17. The composition according to claim 1, wherein:

the at least one filler is selected to provide the composition with a variation in reflectance such that a maximum reflectance measured at a top of a reflection peak is less than about 150% and a minimum reflectance measured at a base of the reflection peak is greater than about 5%, the variation in reflectance being measured for observation angles of from 0 to 80°

at a wavelength corresponding to a region of the spectrum in which a reflectance of the interference particles is greatest.

18. The composition according to claim 17, wherein the maximum reflectance is less than about 100%.