Any recent advances in hair dyes?

That you have heard or read about.
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  • Bill_TogeBill_Toge Member, Professional Chemist
    depends what you mean by 'recent'
    in the last few years, HC Blue No. 15 and Basic Blue 124 are vibrant blue temporary shades that have been introduced onto the market to replace the now-banned Basic Blue 9
    UK based formulation chemist. Strongest subjects: hair styling, hair bleaches, hair dyes (oxidative and non-oxidative) I know some stuff about: EU regulations, emulsions (O/W and W/O), toothpaste, mouthwash, shampoos, other toiletries
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