Hair keratin treatments can be harmful, potentially causing health issues like skin reactions and cancer.
40 citations,
June 2013 in “Journal of cosmetic dermatology” Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.
2 citations,
January 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.
Hair Botox makes hair look healthier and fuller.
December 2008 in “The American Journal of Cosmetic Surgery” Multi-pass laser skin treatments improved healing, reduced pain, and had no major complications.