35 citations,
March 2007 in “Skin Research and Technology” The conclusion is that exogen is a unique hair cycle phase and the new sampling method specifically targets this stage, which may help in future hair loss research.
54 citations,
January 2005 in “Journal of The American Academy of Dermatology” Most patients with chronic hair shedding did not progress to permanent hair loss, and one showed improvement with treatment.
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163 citations,
November 2003 in “Journal of Investigative Dermatology” Low iron levels may be linked to some types of hair loss in women.
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.
231 citations,
October 1999 in “Journal of Clinical Investigation” Activating the Sonic hedgehog gene in mice can start the hair growth phase.
1113 citations,
August 1999 in “The New England Journal of Medicine” Hair follicle biology advancements may lead to better hair growth disorder treatments.
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50 citations,
August 1999 in “Experimental dermatology” The control system for hair growth cycles is not well understood and needs more research.
4 citations,
April 1999 in “Dermatologic Clinics” Androgens, like DHT, affect hair growth and treatments like finasteride may help.
416 citations,
September 1997 in “Journal of Investigative Dermatology” People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.
100 citations,
November 1996 in “Molecular Medicine Today” Growth factors and cytokines are important for hair growth and could potentially treat hair loss, but more research is needed to overcome challenges before they can be used in treatments.
38 citations,
October 1988 in “Clinics in Dermatology” Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.
26 citations,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
