3 citations,
January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.
5 citations,
June 2019 in “British Journal of Dermatology” Chemical hair straightening may be linked to a type of permanent hair loss.
10 citations,
January 1994 Hair can be straightened using different chemicals, not just strong alkali.
October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.