98 citations,
October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.
61 citations,
April 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.
166 citations,
April 2012 in “Journal of The American Academy of Dermatology” Mostly postmenopausal Caucasian women get Frontal Fibrosing Alopecia, which often includes eyebrow loss and has limited treatment success.
49 citations,
April 2010 in “International Journal of Cosmetic Science” 
81 citations,
March 2009 in “Seminars in Cutaneous Medicine and Surgery” Effective hair loss treatment in women requires correct diagnosis and can include medications like minoxidil, antiandrogens, and treatments for underlying conditions like PCOS.
129 citations,
October 2007 in “The New England Journal of Medicine” Over one-third of women experience hair loss, with female-pattern hair loss being most common, and treatments include minoxidil and possibly hair transplantation.
76 citations,
December 2006 in “Journal of Dermatological Science” Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.
162 citations,
August 2004 in “Journal of Investigative Dermatology” Hair loss causes stress and affects mental health; treatment and support needed.
152 citations,
December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
38 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.
239 citations,
July 2002 in “Clinical and Experimental Dermatology” Low iron and L-lysine levels can cause hair loss in women, and increasing these nutrients can reduce hair shedding.
144 citations,
July 2002 in “Clinical and Experimental Dermatology” Telogen effluvium is a common type of hair loss that can resolve on its own or become chronic, with treatment depending on early diagnosis.
234 citations,
February 2001 in “British Journal of Dermatology” FPHL affects hair density and diameter, causing visible hair loss in older women.
581 citations,
October 1998 in “Journal of The American Academy of Dermatology” Finasteride safely and effectively treats male pattern hair loss, but may cause reversible sexual issues and harm male fetuses.
666 citations,
September 1977 in “British Journal of Dermatology” Common baldness, also known as Androgenetic Alopecia, is caused by a combination of genetic factors and hormones called androgens.
