问:请问染发是否有害,致癌的几率有多大?还能不能染发呢?刘维答:染发剂可能对人致癌有很多研究结果,但趋向性结论是:染发剂大多含有致癌物,长期使用可能致癌。染发对人体有害,主要原因在于染发所使用的染料。目前用于染发的染料可以分为两大类。一是天然染料,它们大多是植物性的。另一类是合成染料,主要经化学加工而成。合成染料由于能大量生产,而且有色泽鲜艳、耐洗、耐晒等优点,所以目前 Q: Will the hair is harmful, how likely is the carcinogenic? Can not dye it? Liu Wei A: Hair dye may cause cancer in humans have many research results, but the trend of conclusion is: Most hair dye contains carcinogens, long-term use may Carcinogenic. Hair coloring is harmful to the human body, mainly due to the dyes used to dye the hair. Currently used for coloring hair dyes can be divided into two categories. First, natural dyes, most of them are botanical. The other is synthetic dyes, mainly by chemical processing. Synthetic dyes due to mass production, but also bright color, wash, light-fast, etc., so the current