April 2019 in “Journal of Investigative Dermatology” Maca root extract protects hair follicles and promotes hair growth.
Hair germ cells differ from epidermal cells in keratin expression, and specific keratins form after hair differentiation.
128 citations
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October 2011 in “Development” Activating a protein called β-catenin in adult skin can make it behave like young skin, potentially helping with skin aging and hair loss.
1 citations
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October 2025 in “Nature Communications” Cell size controls when stem cells divide.
1 citations
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August 1994 in “Journal of Cutaneous Pathology” Hair loss happens due to faster cell growth and fewer cells in affected follicles.
352 citations
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August 2003 in “Proceedings of the National Academy of Sciences” Nestin is found in hair follicle progenitor cells, linking them to neural stem cells.
216 citations
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November 1999 in “Fertility and Sterility” Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.
212 citations
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August 2004 in “Proceedings of the National Academy of Sciences” Hair follicle cells can create new blood vessels in the skin.
210 citations
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May 2006 in “The FASEB journal” Oxidative stress causes hair to gray by damaging and killing pigment cells.
178 citations
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April 2011 in “Journal of Clinical Investigation” Basal cell carcinomas in mice can start from hair follicle stem cells and other skin cell types, depending on signaling levels.
176 citations
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September 2006 in “Stem Cells” BMP signaling prevents hair growth by stopping stem cell activation.
162 citations
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August 2002 in “Survey of Ophthalmology” Latanoprost can make eyelashes longer, thicker, and darker.
161 citations
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June 1994 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair stops producing melanin as it transitions from the growth phase to the resting phase.
159 citations
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October 2015 in “Science Advances” Blocking JAK-STAT signaling can lead to hair growth.
144 citations
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December 2004 in “Molecular Endocrinology” The vitamin D receptor is essential for normal hair growth, even without its usual binding.
130 citations
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January 1994 in “Differentiation” Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
127 citations
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January 2013 in “PLOS ONE” Probiotic bacteria improved skin and hair health in aged mice.
124 citations
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August 1994 in “Journal of Investigative Dermatology” Dexamethasone speeds up hair loss in mice, while cyclosporin A slows it down.
112 citations
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October 2005 in “Mayo Clinic Proceedings” Minoxidil and finasteride can slow hair loss and stimulate regrowth, but won't restore all lost hair or reverse complete baldness.
106 citations
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June 2005 in “Journal of Investigative Dermatology” The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.
98 citations
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February 2010 in “Dermatology Online Journal” Vitamin D may help treat hair disorders.
96 citations
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October 2000 in “The FASEB Journal” The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.
88 citations
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June 2019 in “Cell reports” Certain small molecules can promote hair growth by activating a cellular cleanup process called autophagy.
76 citations
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March 2005 in “Journal of Molecular Medicine” Certain mice without specific receptors or mast cells don't lose hair from stress.
71 citations
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February 2006 in “Clinics in Dermatology” Pregnancy causes skin changes like darkening, hair thickening, nail changes, and increased risk of skin growths, most of which usually resolve after birth.
53 citations
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October 2012 in “The FASEB Journal” Bimatoprost, a glaucoma medication, may also help treat hair loss.
47 citations
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April 2000 in “Experimental Dermatology” A new gene mutation causes a rare type of hair loss.
46 citations
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November 2007 in “Gene Expression Patterns” Trps1 plays a key role in hair follicle development and cycling.
41 citations
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January 2015 in “Development” Atoh1 expression can create new Merkel cells in the skin.
40 citations
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April 2006 in “Journal of the European Academy of Dermatology and Venereology” The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.