The Facts About Keratin Treatments
Read these expert opinions and reader reviews before deciding if a Brazilian keratin treatment is right for you
Formaldehyde is on the Department of Health and Human Services' "Reasonably Anticipated to Be Human Carcinogens" list, and has been linked to certain cancers like leukemia. But the levels of formaldehyde found in these treatments are safe, Schoon explains, especially when proper protection and ventilation are used. Over the course of a keratin treatment, clients won't be at risk, unless they have an allergy to formaldehyde or other aldehydes.
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