Transcript: You’ve always had great hair, but—as you’ve learned—pregnancy can change everything! Although many pregnant women worry that dying their hair will somehow harm their babies, there is no current evidence that this is the case. What’s more, hair dye is generally not absorbed into your scalp, or passed to the baby, during the coloring process. So, if you want to change your hair by getting a perm or a chemical straightening? The jury is still out on this topic. Some doctors and stylists say these practices are perfectly safe while expecting. Others say that the solvents in hair products can pose a risk to an unborn child. But the most common—and surprising!—objection to perming or straightening during pregnancy is the potential effect it can have on your hair. Because pregnancy hormones can throw your body chemistry out of whack, the results of your perm or straightening can be an unexpected disaster. So, even if it’s just for your head’s sake, it may be wisest to wait to perm or straighten until after your little one arrives.