Use of calcined kaolin as a mattifying agent
A cosmetic composition comprising a cosmetically acceptable carrier and at least 2.5% by weight of calcined kaolin relative to the total weight of the composition, a cosmetic method for reducing the gloss of the skin, and the use of calcined kaolin as a mattifying agent in a cosmetic composition.
1 . A method for reducing skin gloss consisting of applying to a skin surface a composition having a cosmetically acceptable carrier and an effective amount of flash calcined kaolin, the effective amount being at least 2.5% by weight of flash calcined kaolin relative to a total weight of the composition having the cosmetically acceptable carrier; wherein the flash calcined kaolin has:
a specific surface area (BET) between 8 and 14 m 2 /g,
a sebum absorption of at least 60 mL/100 g of flash calcined kaolin,
a water absorption of at least about 60 mL/100 g, and
a mean particle size as determined by sedimentation (d 50 ) ranging from about 0.1 μm to about 4.0 μm.
2 . The method of claim 1 , wherein the composition does not comprise any oil-derived mattifying agent.
3 . The method of claim 1 , wherein the composition comprises less than 0.5 wt % of a mattifying agent different from the flash calcined kaolin.
4 . The method of claim 1 , wherein the effective amount of flash calcined kaolin is applied to the skin surface and improves skin matte.