157 citations
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April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
150 citations
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April 1999 in “Dermatologic Clinics” Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.
147 citations
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April 1994 in “Drug Safety” Some drugs can cause hair loss or increase hair growth, but these effects are usually reversible when the drug is stopped.
129 citations
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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.
129 citations
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June 1999 in “Archives of Dermatology” African Americans have less hair density than whites.
127 citations
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December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
121 citations
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May 2009 in “Journal of Ethnopharmacology” Eclipta alba extract may help hair grow similarly to Minoxidil.
120 citations
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November 2014 in “Biological Reviews” The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
116 citations
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May 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
116 citations
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September 2001 in “Journal of The American Academy of Dermatology” Hair loss occurs due to fewer papillary cells, smaller follicles, and shorter growth phases.
102 citations
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February 2008 in “The FASEB Journal” One minoxidil-sensitive potassium channel exists in human hair follicles.
100 citations
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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.
98 citations
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June 2008 in “Human mutation” A genetic change in the EDAR gene causes the unique hair traits found in East Asians.
98 citations
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December 2003 in “The FASEB Journal” Thymosin β4 promotes hair growth by activating stem cells in hair follicles.
91 citations
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August 2015 in “Anais Brasileiros De Dermatologia” Female Pattern Hair Loss affects women's self-esteem and needs more research for better treatment.
91 citations
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April 2011 in “Journal of Ethnopharmacology” Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.
89 citations
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December 2010 in “The Journal of Dermatology” The conclusion is that an algorithm using trichoscopy helps diagnose different types of hair loss but may need updates and a biopsy if results are unclear.
89 citations
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September 2010 in “Annual Review of Genomics and Human Genetics” The document concludes that understanding the genes and pathways involved in hair growth is crucial for developing treatments for hair diseases.
86 citations
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June 2017 in “Stem cell investigation” Stem cells from hair follicles can safely treat hair loss.
86 citations
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February 2003 in “Journal of The American Academy of Dermatology” New methods improve how we test hair growth treatments, but challenges like slow hair changes and high costs remain.
83 citations
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May 1999 in “International Journal of Dermatology” Hair loss that spreads out can often fix itself or be treated by finding and handling the cause.
81 citations
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January 2003 in “The FASEB Journal” Follistatin helps hair growth and cycling, while activin prevents it.
75 citations
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October 2016 in “Genes & Development” Cells in hair follicles help create fat cells in the skin by releasing a protein called Sonic Hedgehog.
75 citations
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January 2009 in “International journal of trichology” Hair grays due to oxidative stress and fewer functioning melanocytes.
74 citations
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January 2013 in “Expert Opinion on Biological Therapy” The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.
73 citations
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June 2001 in “Endocrinology” Prolactin affects when mice shed and grow hair.
72 citations
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December 1996 in “Journal of Investigative Dermatology” Human hair follicles can regenerate after removal, but with low success rate.
71 citations
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May 2007 in “The FASEB journal” Human hair follicles produce and respond to erythropoietin, helping protect against stress.
68 citations
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December 1991 in “Annals of the New York Academy of Sciences” Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.
67 citations
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July 1985 in “British journal of dermatology/British journal of dermatology, Supplement” Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.