US Patent Issued to L'Oreal on Dec. 23 for "Method for the cosmetic treatment of keratin materials employing a rare earth metal composition and an alkaline composition" (French Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,341, issued on Dec. 23, was assigned to L'Oreal (Paris).

"Method for the cosmetic treatment of keratin materials employing a rare earth metal composition and an alkaline composition" was invented by Valerie Jeanne-Rose (Aulnay-sous-Bois, France) and Henri Samain (Chevilly-Larue, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for the cosmetic treatment of keratin materials, in particular human keratin materials, such as the skin or hair, comprising a stage of application of a composition comprising a compound of a metal belonging to the group of the rare earth metals, followed by a stage of application of an a...