13 citations,
March 2017 in “Skin Research and Technology” Formaldehyde damages curly hair more than glyoxylic acid.
3 citations,
June 2011 in “PubMed” Coconut oil protects hair from damage better than regular grooming practices.
13 citations,
November 2012 in “International Journal of Dermatology” Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.
9 citations,
May 2018 in “Photochemistry and photobiology” The Hair BB Cream effectively prevents UV damage and improves hair health.
29 citations,
December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.