Chemicals are often used to straighten hair, and they have a more permanent effect. However, this practice is often accompanied by undesirable outcomes.

Tips

Prefer straightening with a hair dryer or straightening iron which, although less permanent, is less toxic.


Ingredients to avoid in products you choose

  • Formaldehyde: carcinogenic, eye and respiratory irritant, respiratory sensitizer
  • Glycol: irritant to the eyes, respiratory and digestive tracts
  • Sodium hydroxide: irritant and corrosive to the skin, eyes, respiratory and digestive tracts
  • Parabens: endocrine disruptors
  • Polypropylene: skin, eye and respiratory irritant, respiratory sensitizer
  • Sodium lauryl sulfate: irritant, may cause contact dermatitis
  • Ammonium thioglycolate: skin and eye irritant, skin sensitizer