October 2012 in “Annals of Allergy Asthma & Immunology” Witch hazel can help protect skin and may fight colon cancer cells.
37 citations,
January 2015 in “Evidence-based Complementary and Alternative Medicine” An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.
11 citations,
January 2014 in “International Journal of Trichology” Witch hazel-based hair products improved scalp irritation and were well-tolerated.