Is Hair Dye Safe in Pregnancy? What the NHS Says (and How to Reduce Exposure)
Few pregnancy questions spark more worry than hair dye. The short answer from the NHS is reassuring, and the precautions it recommends are simple. Here is what it says, and where its guidance stops.
What the NHS says
The NHS states that most research shows it is safe to dye or colour your hair while pregnant. It says you might decide to wait until after the first 12 weeks of pregnancy, and it does not say that dyeing is unsafe in the first trimester. Waiting is a personal choice, not a rule.
How to reduce your exposure
- Always do a strand test first, whether it is a new product or one you have used before. Your skin and hair can react differently in pregnancy.
- Wear gloves, because skin can be more easily irritated while you are pregnant.
- Apply dye in a well-ventilated room to minimise contact with fumes.
- Consider highlights. Putting the dye only on strands of hair reduces any risk, according to the NHS.
- Consider a gentler alternative. The NHS suggests a semi-permanent pure vegetable dye, such as henna.
What the guidance does not cover
The NHS page we used does not mention bleach, chemical straighteners or smoothing treatments. If you are planning one of these, tell your stylist you are pregnant and ask your midwife or doctor first. Read labels, and choose a well-ventilated salon.
Trying to conceive?
The same research summary applies if you are planning a pregnancy. There is no NHS advice to avoid hair dye while trying. See skincare when trying to conceive for the things that do deserve a check.
The bottom line
The NHS says most research shows hair dye is safe in pregnancy. Do a strand test, wear gloves, ventilate the room, and consider highlights or henna if you want to reduce exposure further. If you want to wait until after 12 weeks, that is a perfectly reasonable choice.
Frequently Asked Questions
Is it safe to dye my hair when pregnant?
The NHS says most research shows it is safe to dye or colour your hair while pregnant.
Should I wait until after the first trimester?
The NHS says you might decide to wait until after the first 12 weeks. It does not say dyeing is unsafe earlier, so this is your choice.
How can I reduce exposure to hair dye?
The NHS suggests a strand test, gloves, a well-ventilated room, highlights rather than all-over colour, or a semi-permanent pure vegetable dye such as henna.
Is hair bleach or straightening safe in pregnancy?
The NHS page we used does not cover these. Ask your midwife or doctor, and tell your stylist you are pregnant.
Can I dye my hair while trying to conceive?
We found no NHS advice to avoid hair dye while trying to conceive, and the same research summary applies.
Sources
- NHS. Is hair dye safe in pregnancy? Best Start in Life. nhs.uk
This article is general information, not medical advice. If you have a skin or scalp condition, or you are pregnant, breastfeeding or taking medication, speak to a doctor, pharmacist or dermatologist before changing your routine.
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