37 citations,
February 2014 in “Journal of Dermatology” Valproic acid increases hair count in men with hair loss.
25 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Phototrichogram and hair diameter measurements are effective, noninvasive ways to assess hair growth and detect early hair loss, with the most common pattern being reduced hair density.
16 citations,
November 2013 in “European Journal of Dermatology” Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.
15 citations,
May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
3 citations,
November 2019 in “Cosmetics” Shampoo with Inula Helenium and Caesalpinia Sappan Bark extracts promotes hair growth and prevents hair loss in androgenetic alopecia patients.