Question: I was just about to color my hair, but my friend told me that hair dyes can cause birth defects. Is this true?

Answer: Some extra-cautious healthcare practitioners do still recommend to their patients to stay away from hair dyes when they’re pregnant, but studies have not linked these products to birth defects. It seems that so little of the chemicals in the dyes are absorbed through the skin, that it’s not likely to cause any bad effects.

But, while you may not have to worry about the effects on your baby when you color your hair, you may have to worry about the effect on your appearance. Due to the hormones you have when pregnant, your hair may react differently – leaving you with a color you may not have expected.