Scientists discover seaweed-based hair dyes Scientists discover seaweed-based hair dyes 27-Jul-2009 By Simon Pitman Scientists in the UK have discovered a seaweed growing off that Shetland Island that could be used to create natural-based hair dyes.
Patent for natural hair dye given to Advanced Cosmetic Technologies Patent for natural hair dye given to Advanced Cosmetic Technologies 23-Jul-2009 By Leah Armstrong American cosmetics company, Advanced Cosmetic Technologies, has been awarded a patent in the US for a range of natural hair dyes which are PPD, resorcinol and ammonia free.