Did anyone do hair treatment (rebonding, keratin treatment etc) while breastfeeding?

Although no data is available on women receiving hair treatments while breastfeeding, it is known that little of the chemicals would actually be absorbed into the bloodstream. Therefore, the chance of them entering the milk and posing a risk to an infant would be unlikely. BUT if you are hesitant (very good reason to be), you can avoid treatments that involve the scalp because these can be absorbed into the bloodstream and in the long run, affect breastmilk. Consider alternatives like having highlights put in your hair because the dye is only placed on strands of your hair and does not touch the scalp. This way, the skin does not absorb the chemicals into the bloodstream. Another alternative is pure vegetable dyes including henna. You could also consider home made natural hair treatments. Here's a link that has some awesome ideas: http://www.womansday.com/style/beauty/advice/a1853/8-homemade-hair-treatments-110251/ If you are still concerned about hair treatments and dyes, you may want to talk to your doctor just to be safe.