L’Oréal Patents Formula with Long-Lasting Effects

This L'Oréal formula contains as much as 30% by weight of carbon black.

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By: TOM BRANNA

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US 12,296,039 B2. Akito Hoshino, Kanagawa, Japan. Assignee: L’Oréal, Paris. A L’Oréal researcher patented a composition with long-lasting concealing effects. The composition includes: (a) carbon black, in an amount of 1% to 30% by weight, relative to the total weight of the composition; (b) at least one first copolymer selected from the group consisting of acrylates copolymer, ammonium acrylates copolymer, and a mixture thereof, in an amount of 0.001% to 30% by weight, relative to the t...

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