The Myth: You can't dye your hair when you're pregnant
This is one that often causes a lot of panic, but don’t worry. You needn’t give up your ombré once you get pregnant. Maternal-Fetal Medicine Specialist Cynthia Gyamfi-Bannerman, MD, at the New York Presbyterian Hospital told us it’s safe to dye your hair during pregnancy. “There are some caveats. Older dyes were formaldehyde-based. While it is difficult to find these, they should be avoided,” she said.
“The period of organogenesis (the initial formation of all the baby's organs) is generally completed by about 10 weeks gestation, which is why some people suggest waiting until outside of the first trimester if you want to use dyes or other chemicals. There is very little that gets absorbed into the maternal blood stream,” she clarified. Gyamfi-Bannerman recommends that if you’re doing DIY hair color, you should wear gloves and stay in a well-ventilated location.
The Bottom Line: False