Welcome Guest to Happi

Subscribe Free: Magazine | eNewsletter

current issue August 2014
 •  Personnel Changes at Energizer  •  Avon Launches Color Cosmetics  •  The Honest Co. Closes Financing Round  •  Oral-B Touts Made in USA Status  •  Walgreens Partners With NeoCell
Print

Hair Dye



Published December 8, 2008
Related Searches: men patent
Post a comment
U.S. Patent No. 7,429,275 B2
L’Oréal S.A. has patented a method of dying human keratin materials that involves application of at least one direct dye comprising at least one non-metallic or metallic cationic compound chosen from porphyrin compounds and phthalocyanin compounds, wherein the metal element is at least one metal or metal ion chosen from columns IA and IIA of the Periodic Table of the Elements, zinc, and silicon.


blog comments powered by Disqus