wash hair before dyeing

Many individuals, while anticipating the beauty of a new hair color, often harbor concerns about the potential carcinogenic risks of hair dyes as they inhale the pungent odor during the dyeing process.   01 Are Hair Dyes Actually Carcinogenic? This question has been the subject of research since the 1960s: In 1963, studies found that hairdressers were prone to bladder cancer. In 1971, British scholars proposed that hair dyes could increase the likelihood of breast cancer in women. In 1977, American researchers confirmed that hairdressers had a higher chance of developing lung cancer. In 1978, experts reported that women who frequently dyed their hair had more chromosomal breaks in their […]