Is eyebrow tinting safe during pregnancy?

What does the evidence say about eyebrow tinting during pregnancy?

1. When hair and tint products are used as directed, the amount of dye absorbed through unbroken, healthy skin is small, and normal use isn't expected to meaningfully raise the chance of birth defects. 1
2. PPD, a common ingredient in permanent hair and brow dye, is a well-documented contact allergen: about 4 percent of people tested for allergic contact dermatitis show PPD sensitization, and facial reactions are more common in women because of dye use. 2
3. PPD allergy typically shows up as a delayed eczema-like reaction, most often on the hands or as a spreading rash, with facial involvement in roughly 1 in 6 documented cases. 2
4. Black henna, sometimes marketed as a natural brow-tint alternative, is often mixed with unregulated, high concentrations of PPD to darken the color and speed up staining, at levels that have caused chemical burns and severe allergic reactions in documented cases, unlike plain, unmixed henna. 3
5. MotherToBaby groups tinting among the cosmetic exposures worth discussing with your healthcare provider before pursuing during pregnancy. 4

Is eyebrow tinting safe in each trimester?

• First trimester. Skin sensitivity and allergy patterns don't reliably change early in pregnancy, but if you've never been tinted before, this is a good time to ask your esthetician for a patch test a day or two ahead rather than finding out about a PPD allergy on your face.
• Second trimester. If tinting is already part of your routine, there's nothing about the second trimester that changes the guidance. Keep using it as directed, and stop if you notice unexpected redness, swelling, or itching that wasn't there before.
• Third trimester. Some people notice their skin reacts differently to products they've used for years as pregnancy progresses. If a tint you've always tolerated suddenly causes irritation late in pregnancy, consider it a new reaction rather than assuming it's automatically fine just because it was before.