47 citations
,
March 2013 in “International Journal of Cosmetic Science” Hair diversity is influenced by complex genetics and environmental factors, requiring more research for practical solutions.
61 citations
,
July 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
40 citations
,
December 2011 in “British Journal of Dermatology” Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.
20 citations
,
January 2011 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
76 citations
,
February 2007 in “Journal of Dermatological Science” Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.
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.
203 citations
,
June 2003 in “Journal of the American Academy of Dermatology” Human hair, despite its different types, shares common traits that affect its structure and response to treatments.
11 citations
,
February 2002 in “International Journal of Cosmetic Science” Recent findings show that hair growth and color are controlled by a complex network of signals in the hair follicle.
234 citations
,
February 2001 in “British Journal of Dermatology” FPHL affects hair density and diameter, causing visible hair loss in older women.