Patents

Pierre Fabre Patents Dye Composition with Extracts of Lawsonia Inermis

US Patent No. 11,707,428 B2.

Author Image

By: Christine Esposito

Editor-in-Chief

US Patent No. 11,707,428 B2 (Christel Fiorini-Puybaret, Philippe Joulia); Pierre Fabre Dermo-Cosmetique patented a method for preparing a dye composition. It entails following steps:

• providing an extract A of the aerial parts of Lawsonia inermis containing from 7 to 60% by weight of lawsone relative to the total weight of the dry extract (wherein the lawsone results notably from enzymatic hydrolysis of glycosylated lawsone derivatives);

• providing an extract B of the aerial parts of Lawsonia inermis containing less than 0.6% by weight of lawsone, at least 15% by weight of phenol compounds and at least 60% by weight of saccharide compounds, including polysaccharides, relative to the total weight of the dry extract;

• mixing extract A and extract B; and

• obtaining a dye composition.

Keep Up With Our Content. Subscribe To Happi Newsletters