4 citations
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July 2016 in “Journal of cosmetic dermatology” This review discusses the potential risks and effects of chemical relaxers on hair and scalp health, reporting no new clinical results; the authors emphasize dermatologist guidance to mitigate these issues.
June 2007 in “Journal of Investigative Dermatology” Title change to "Central Centrifugal Cicatricial Alopecia (CCCA)"; common in African American women; hair-grooming methods may contribute; no effective therapy found; trials needed.
August 2021 in “International Journal of Research in Dermatology” This article reviews various hair straightening methods, discussing their mechanisms and potential effects on hair, but it reports no new clinical results.
13 citations
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June 2021 in “Carcinogenesis” In this study, frequent use of hair straighteners/relaxers and pressing products was associated with an increased risk of ovarian cancer, with potential variation in risk by tumor type noted for permanent hair dyes.
11 citations
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January 2000 in “Journal of cosmetic science” This study found that hydrolyzed wheat proteins extensively penetrated both untreated and chemically treated hair, primarily occupying areas like the endocuticle and cortex.