Company News, Patents

Permanent Hair Color Developed by Unilever

Author Image

By: TOM BRANNA

Editor

Patent No. US 6,821,302 B2: Unilever Home & Personal Care USA, a division of Conopco, Inc., Chicago, patented a permanent hair colorant using carbonate salts and bicarbonate salts, as well as percarbamic acid precursors.

Keep Up With Our Content. Subscribe To Happi Newsletters