Oxidative Hair Dye Patented by Henkel
Published November 15, 2005
Patent No. US 6,719,811 B1: Henkel, Düsseldorf, Germany, earned a patent for a process to oxidatively dye the hair by contacting keratin fibers with a dye comprised of a carrier and indolines, or salts of indolines.
blog comments powered by Disqus