209 citations
,
September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
207 citations
,
April 2006 in “Journal of The American Academy of Dermatology” Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.
203 citations
,
December 2004 in “Journal of The American Academy of Dermatology” Early diagnosis and treatment, using finasteride, minoxidil, or hair transplantation, improves hair loss outcomes.
202 citations
,
August 2017 in “Nature cell biology” Lactate production is important for activating hair growth stem cells.
196 citations
,
March 2016 in “Nature Communications” Genetic factors influence hair traits like shape, color, and greying in Latin Americans.
196 citations
,
September 2016 in “JCI insight” Ruxolitinib effectively regrows hair in most patients with severe hair loss.
192 citations
,
March 2017 in “Cell host & microbe” Hair follicle development and microbes help regulatory T cells gather in newborn skin.
191 citations
,
September 2011 in “Cell stem cell” Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.
188 citations
,
May 2009 in “Plant physiology” Researchers found 19 genes important for root hair growth in a plant called Arabidopsis.
174 citations
,
April 2005 in “The American journal of pathology (Print)” Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.
165 citations
,
June 2007 in “European Journal of Cell Biology” Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.
163 citations
,
April 2019 in “Nature Communications” Mechanical stretching of the skin can promote hair growth by activating certain immune cells.
159 citations
,
July 2006 in “Endocrine Reviews” Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.
149 citations
,
March 2004 in “Journal of Dermatological Science” Minoxidil boosts hair growth by increasing cell production and survival.
146 citations
,
May 2002 in “The American journal of pathology” Cathepsin L is essential for normal hair growth and development.
138 citations
,
March 2001 in “Clinics in Dermatology” Hair loss can significantly affect a person's self-esteem and body image, especially in young people, those who value their looks highly, and women.
136 citations
,
May 2019 in “Cells” Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.
134 citations
,
September 2008 in “Lasers in surgery and medicine” Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
130 citations
,
August 2015 in “Experimental Dermatology” Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.
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.
128 citations
,
March 2006 in “American Journal of Pathology” Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.
128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
127 citations
,
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.
125 citations
,
May 2007 in “Journal of The American Academy of Dermatology” The BASP classification is a detailed and accurate way to categorize hair loss in both men and women.
125 citations
,
September 2001 in “The FASEB Journal” Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.
124 citations
,
August 1994 in “Journal of Investigative Dermatology” Dexamethasone speeds up hair loss in mice, while cyclosporin A slows it down.
122 citations
,
July 2005 in “The FASEB journal” Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.
120 citations
,
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.
117 citations
,
March 2017 in “Nature Communications” Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.
114 citations
,
January 2007 in “Drug Safety” Some drugs can cause skin, nail, and hair problems, which are important for healthcare professionals to recognize and report.