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我今年60岁,已经满头白发了,身边很多人都说让我去染一下,显得人精神多了,但又怕会致癌。请问染发剂致癌的风险到底有多大?多久染一次比较合适?湖南衡阳何凯我们常听说染发剂中的苯二胺类物质可能引起致癌,对此,专家们多认为“脱离浓度来谈毒性”是不科学的。在常见的氧化性染发剂中,苯二胺类物质的浓度都在1%以下,远低于实验所用浓度。若非持续5年以上、高频度的刺激皮肤,
I am 60 years old and have already got gray hair. Many people around me said that I should dye it. It seems that people are more spirited, but afraid of causing cancer. Will the risk of carcinogenic hair dye in the end how much? How long it is more appropriate to dye? Hengyang, Hunan He Kai We often hear that hair dye benzene diamine may cause cancer, which, experts believe that Toxicity "is unscientific. In the common oxidative hair dye, the concentration of phenylenediamine substances are below 1%, well below the concentration used in the experiment. If not for more than 5 years, high frequency stimulation of the skin,