Chemicals of concern in select packaged hair relaxers available on the Kenyan market: an examination of ingredient labels and measurement of pH - Irungu, Beatrice N.; Llanos, Adana A. M.; Nyangi, Mary; Olisa, Teresa; Matu, Esther; Rockson, Amber; Schaefer, Alexis; Ashrafi, Adiba; Terry, Mary Beth; McDonald, Jasmine A.; Nudelman, Janet; Gillan, Laura Dobbs; et al. (Frontiers in Public Health, 2025)