36 citations
,
December 2016 in “Journal of The American Academy of Dermatology” The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
193 citations
,
January 2015 in “International journal of trichology” Dermatologists need to understand hair products to treat hair and scalp issues better.
55 citations
,
March 2007 in “Journal of cosmetic dermatology” Afro-ethnic hair can be straightened using chemical and heat methods.