自古以来,国人以头发乌黑为美。而今无论男女老少,只要银丝一爬上头,便唯恐被人视为衰老之征,不惜成年累月地反复染发。要知道,各种染发剂皆含有几十种化学成分,医学专家指出,如果长期使用染发剂,只要1%被皮肤吸收进入人体,就会蓄积中毒。其中化学物质与某些 Since ancient times, people with black hair for the United States. Now men and women, young and old, as long as the silver climbed up, they feared being seen as signs of aging, at all ages repeatedly hair. You know, all kinds of hair dye contains dozens of chemical composition, medical experts pointed out that if the long-term use of hair dye, as long as 1% absorbed into the skin by the body, it will accumulate poisoning. Among the chemicals and some