Common question Short answer: with caution

Are Keratin and Chemical Hair-Straightening Treatments Safe During Pregnancy?

Empty hairdressing salon with a shampoo chair, illustrating chemical hair-straightening treatments during pregnancy

Answer

Some keratin and chemical hair-straightening treatments can release formaldehyde or formaldehyde-releasing chemicals during heat-styling, which is a known concern in pregnancy contexts generally. While no direct study establishes fetal harm from salon-level exposure, guidance leans toward caution.

Reviewed by Jamie G, Founder & Researcher · Last reviewed September 11, 2026 · 2 sources cited · 1 min read

Understanding Keratin and Chemical Hair-Straightening Treatments During Pregnancy

Some keratin and chemical hair-straightening treatments can release formaldehyde or formaldehyde-releasing chemicals during the heat-styling process 2. Formaldehyde exposure is a known concern in pregnancy contexts generally 2.

What the Research Indicates

It’s important to note that there isn’t a direct study specifically establishing fetal harm from salon-level exposure during a hair-straightening treatment 1. Due to this limited direct evidence, guidance on these treatments during pregnancy leans toward caution rather than a firm blanket verdict 2.

Recommendations for Pregnant Individuals

If you are considering keratin or chemical hair-straightening treatments during pregnancy, expert guidance suggests a cautious approach 2. Key considerations include:

  • Ensuring good ventilation during the treatment 2.
  • Checking the product’s formaldehyde content 2.
  • Discussing the treatment with your healthcare provider before proceeding 2.

Remember, SafeMom provides informational guidance, not medical advice. Always consult with your healthcare provider for personalized recommendations.

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Sources

  1. Keratin hair treatment pregnancy risks, doctor explains. TODAY.com / NBC. View source →
  2. Dying hair and hair straightening during pregnancy: is it safe?. Get The Gloss. View source →

Jamie G

Founder & Researcher, SafeMom

Jamie founded SafeMom after researching the ingredient-regulations gap that leaves expecting parents without a single trustworthy answer source. Not a medical professional — all medical questions should be directed to your OB or midwife.

Reviewed September 11, 2026 2 sources cited Editorial standards Suggest a correction

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