Using hair dye in pregnancy: is it safe?
Most research shows that it’s safe to dye or colour your hair while pregnant.
Although the chemicals in permanent and semi-permanent hair dyes may cause harm, this is only in very high doses. When you use hair dye, you are only exposed to very low amounts of these chemicals.
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Can I dye my hair while I’m pregnant?
Most hair dyes contain chemicals, but your scalp doesn't absorb much of the hair dye, especially if you have a healthy scalp.
You might decide to wait until after the first 12 weeks of pregnancy to dye your hair, when the risk of chemical substances harming the baby is lower.
Whether you’re in your 2nd or 3rd trimester, pregnancy can affect your hair's normal condition, so it’s worth remembering that your hair may react differently to colouring than it usually does.
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How to dye your hair safely while pregnant
Test the hair dye first
Always do a strand test first, whether you're using hair dye for the first time or it's a product you've used before. This is because your hair may react differently during pregnancy.
If you are having your hair coloured at the hairdressers, tell them you are pregnant and ask for a patch test, even if it’s a dye that they’ve used on your hair previously.
Colouring your hair at home
If you’re colouring your hair at home, always:
- wear gloves, as skin can be more easily irritated while you’re pregnant
- leave the dye on for the minimum time – check the manufacturers advice and do not exceed the maximum application time
- apply hair dye in a well-ventilated room to minimise contact with any fumes
- rinse your scalp thoroughly with water and wipe away any excess dye
Highlights
Highlighting your hair, by putting the dye only on to strands of hair, reduces any risk. The chemicals used are only absorbed by your hair, and not by your scalp or bloodstream.
Semi-permanent colour
You could try a safer alternative such as a semi-permanent pure vegetable dye, like henna.
If you’re unsure or worried about the potential risks associated with dyeing your hair while pregnant, speak to your midwife or doctor.
