March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.
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July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
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.
February 2022 in “Fibers” Scientists created a non-toxic, sugar-based hair product that can style hair without damage.
January 2024 in “Molecules (Basel. Online)” Juglone from walnut extracts may help repair damaged hair.