The Best Coloring Your Hair While Breastfeeding Ideas. Web bleaching your hair while breastfeeding is similar to dyeing it, but there are no truly natural ways to significantly lighten your hair because you are stripping color out rather than adding it on top of your natural color. Besides, the chemicals in the dye will not enter your milk supply, so they won’t get to your baby.

Fortunately, changing your hair color while breastfeeding is completely safe both for you and your baby. If this innocent mistake happens, it can be toxic to your baby. The color may be too harsh on your baby’s skin, and might also cause other side effects.