Is Keratin / Brazilian Blowout Treatments safe during pregnancy?
Many salon smoothing treatments release formaldehyde gas when heated. Best postponed until after pregnancy.
What the sources say
FDA warns that many hair smoothing products contain formaldehyde (also listed as formalin or methylene glycol) that is released as a gas when heated with a flat iron, exposing clients and stylists. MotherToBaby notes worker studies around formaldehyde suggested a higher chance of miscarriage. While breastfeeding, large amounts are unlikely to reach milk, but choose well-ventilated salons and formaldehyde-free options.
Also listed as
brazilian blowout, brazilian keratin treatment, hair smoothing treatment, japanese hair straightening, keratin blowout, keratin smoothing treatment, keratin treatment
Sources
- FDA: Hair Smoothing Products That Release Formaldehyde When Heated
- MotherToBaby: Hair Treatments
- NIH NIEHS: Formaldehyde
Last reviewed . This is general information, not medical advice. Ask your doctor or midwife about your own situation.