The pH of Lye and No-Lye Hair Relaxers, Including Those Advertised for Children, Is at Levels That Are Corrosive to the Skin

    November 2019 in “ South African Medical Journal ”
    V N B Sishi, Jennifer C. Van Wyk, Nonhlanhla P. Khumalo
    Studysummary This study found that the pH levels of relaxers tested were corrosive to the skin and may contribute to alopecia in females with afro-textured hair.
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    Research cited in this study 7

    1. Hair Care Practices and Scalp/Hair Disease in African American Girls Journal of The American Academy of Dermatology · 2011
    2. Central Centrifugal Cicatricial Alopecia: Past, Present, and Future Journal of The American Academy of Dermatology · 2009
    3. Determinants of Marginal Traction Alopecia in African Girls and Women Journal of the American Academy of Dermatology · 2008
    4. Hair Loss: Is There a Relationship with Hair Care Practices in Nigeria? International Journal of Dermatology · 2005
    5. Human Hair: A Unique Physicochemical Composite Journal of the American Academy of Dermatology · 2003
    6. Hair Shape of Curly Hair Journal of the American Academy of Dermatology · 2003
    7. Hair Care Products: Waving, Straightening, Conditioning, and Coloring Clinics in dermatology · 2001