Nina Sy wrote:We've been warned of potential harm to the fetus or the breastmilk by chemicals in hair colour/dye.  Is there any truth to it?  Have you had one yet, during or after the pregnancy?  How soon? 

Hi Nina,

I'm a hairdresser. I didn't colour my hair until 12 weeks postpartum. Highlighting should be ok if no toner is used. I don't colour my hair a lot..about once every 4 months or so. I don't think the chemicals go into the milk.