4 citations
,
August 2016 in “PubMed” Repeated dyeing and shampooing cause hair color loss and damage.
12 citations
,
March 1958 in “American Journal of Clinical Nutrition” Shampooing can affect the loss of minerals like calcium and iron from hair.
1 citations
,
May 1983 in “Acta dermato-venereologica” The hairpiece matted due to weathered hair after shampooing.
January 2012 in “Journal of Liaoning University of Traditional Chinese Medicine” Lifestyle factors like frequent shampooing and mental labor are linked to androgenetic alopecia.
99 citations
,
June 2005 in “Journal of Cosmetic Dermatology” Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.