Did you know...

Are you planning pregnancy? You have to visit … hairdresser!

Preparations for dyeing and straightening hair, used by women during pregnancy and breastfeeding cause the exposure of children to the occurrence of early childhood leukemia. So to prepare well for pregnant and breast-feeding for a time give up the dyeing and hair straightening preparations. 

In the first three months of pregnancy, women exposure to carcinogens could be extremely harmful. During these first three months fetus growing in the mother’s womb is most vulnerable to the harmful effects of chemicals. Researches carried out earlier related to early childhood leukemia (before 2 years of age) showed that the development of this disease can affect factors such as pesticides, organic solvents, cigarette smoke and even some medications.

It has long been that hair dyes appear on the list of potential carcinogens. However, only large-scale studies (case-control study) carried out in Brazil in 1999-2007 showed direct relationship to the child's disease risk to acute lymphocyte leukemia with the application of dyeing preparations or straightening preparations for hair in the first three months of pregnancy. While, the risk of child disease to acute myeloid leukemia increases at the time of exposure to these substances breastfeeding mothers. Studies examined children and mothers of children suffering from both forms of acute leukemia (231 cases) and 419 in the control group. Mothers grant answers to questions about the application of straightening and dyeing hair preparations during the three months before pregnancy, during pregnancy and breastfeeding. Researches in Brazil also made it possible to predict the most harmful constituents of preparations for dyeing and straightening hair: main suspects are paraben esters and 2-methyl-5-hydroxyethylaminophenol.

None of mothers wants to see their child struggling in a hospital bed with acute leukemia. Moreover, huge risks associated with the use of dyeing or straightening hair preparations during pregnancy and breastfeeding is a fact. Even in planning pregnancy, each woman needs to take into account to stop the use of these preparations during pregnancy and lactation. It is probably possible by changing hairstyles, whether the earlier planning to return to natural hair color for pregnancy. Thus another recommendation for women planning to become pregnant next to for example visit to the dentist, will be visit ... hairdresser! Such knowledge should be widely promoted among all women of childbearing age.

Source: Couto A.C., Ferreira J. D., Rosa A.C.S., Pombo-de-Oliveira M.S., Koifman S.: Pregnancy, maternal exposure to hair dyes and hair straightening cosmetics, and early age leukemia. Chemico-Biological Interactions, 2013, 205, p. 46–52


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