Hair Straightening Treatment (Keratin / Brazilian Blowout) — safety profile
High riskChemical hair straightening treatments using formaldehyde or formaldehyde-releasing agents (methylene glycol, glutaraldehyde, glyoxylic acid).
What is this product?
Chemical hair straightening treatments using formaldehyde or formaldehyde-releasing agents (methylene glycol, glutaraldehyde, glyoxylic acid). FDA proposed ban on formaldehyde in hair straighteners (2024) after epidemiological studies linked professional use to increased uterine cancer risk (NIH 2022). Products labeled 'formaldehyde-free' may release formaldehyde when heated during flat-iron application.
What's in it
Click any compound name for its full safety profile, regulatory consensus, and exposure data.
Active Ingredient
Red flags — when to walk away
- Product causes skin irritation, redness, or rash — Contact dermatitis or chemical sensitivity.
Green flags — what to look for
- EWG Verified or dermatologist-tested label — Meets strict ingredient safety criteria.
Safer alternatives
- Glyoxylic acid-based treatments — lower toxicity, no formaldehyde release
- Mechanical straightening — flat iron without chemical treatment
- Embrace natural texture — zero chemical exposure
Frequently asked questions
Are there safer alternatives to Hair Straightening Treatment (Keratin / Brazilian Blowout)?
Yes — consider: Glyoxylic acid-based treatments; Mechanical straightening; Embrace natural texture. See the Safer alternatives section above for details.
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Open in body View raw API dataReference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →