the latet word on thi continuing concern come from the international agency for reearch on cancer (iarc), which ha concluded that working regularly with hair dye in hair alon and barberhop probably increae the rik of cancer and that long term employment in thee etablihment i "probably carcinogenic to human."
however, the iarc, a world health organization panel, reported that there i not enough evidence to conclude that occaional peronal ue of hair coloring raie the rik of cancer.thi new report, publihed in the april, , iue of lancet oncology, i the firt cientific word on the ubject ince , when panih reearcher reported that their review of 79 tudie from 11 countrie yielded no h2 evidence of a link between hair dye and cancer rik. the only connection the panih team oberved wa the poibility of a light increae in the rik of leukemia and multiple myeloma, but they concluded that the caual effect wa too weak to be a major concern.earlier, reearcher at yale univerity found that long-term ue of dark hair dye by women who began coloring their hair before 1980 may increae the rik of non-hodgkin lymphoma. no uch rik wa een among women who began dyeing their hair after 1980. here, the difference may be due to the elimination of coal-tar-derived ingredient ued in the older product that are known carcinogen. the yale tudy wa publihed in the jan. 15, , iue of the american journal of epidemiology.由好作网www.hAOzuowEn.com整理
in general, i dicourage ue of hair dye containing artificial coloring agent, which to my mind are a upect in cometic product a they are in food. hair dye applied to the head are aborbed through the calp, where there a very rich blood upply that may carry them throughout the body. im ure that the new iarc report wont be the lat word on thi ubject. ill keep you poted on development.