40 citations
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June 2013 in “Journal of cosmetic dermatology” Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.
14 citations
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January 2015 in “Skin Appendage Disorders” Brazilian keratin treatment can cause severe skin reactions.
2 citations
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May 2022 in “International Journal of Trichology” Brazilian Keratin Treatment can cause skin reactions like redness and scaling, possibly due to formaldehyde.
Hair keratin treatments can be harmful, potentially causing health issues like skin reactions and cancer.
4 citations
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January 2022 in “Cosmetics” Avoid high-tension styles and use professional treatments to reduce hair damage and health risks.