September 2016 in “Journal of Investigative Dermatology” Zinc deficiency disrupts hair growth and cycle, but zinc supplements can fix this.
October 2017 in “Journal of Investigative Dermatology” BMPs are crucial for hair growth and their decrease by androgens leads to hair loss.
208 citations,
January 2013 in “Lab on a Chip” The Multi-Organ-Chip improves the growth and quality of skin and hair in the lab, potentially replacing animal testing.
191 citations,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
182 citations,
December 2007 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.
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.
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.
93 citations,
June 2008 in “Atmospheric environment” Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.
87 citations,
April 2018 in “Biochemical and Biophysical Research Communications” Exosomes from dermal papilla cells can help grow hair and might treat hair loss.
64 citations,
April 2005 in “International Journal of Dermatology” Hair transplant destroyed by lichen planopilaris.
55 citations,
January 2016 in “Annals of Dermatology” Microneedle stimulation can increase hair growth in mice.
54 citations,
April 2019 in “Journal of cellular physiology” miR-218-5p helps skin and hair growth by targeting SFRP2 and activating a specific signaling pathway.
44 citations,
March 2004 in “Journal of Investigative Dermatology” The effects of estrogen on human hair growth are unclear and need more research.
42 citations,
July 2014 in “Journal of biological chemistry/The Journal of biological chemistry” Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.
42 citations,
January 2011 in “Journal of Biomedical Optics” Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
39 citations,
September 2013 in “Journal of Cosmetic Dermatology” Herbs can potentially treat hair loss by inhibiting a key enzyme and promoting hair growth, and deficiencies in zinc, biotin, and iron are linked to hair loss.
38 citations,
June 2017 in “The Journal of Dermatology” Aging in hair follicle stem cells leads to hair graying, thinning, and loss.
33 citations,
December 2008 in “Journal of Dermatology” Adenosine lotion improves hair growth and thickness in women with hair loss.
30 citations,
February 2017 in “Histochemistry and Cell Biology” TPA promotes hair growth by increasing stem cell activity and activating specific cell signals.
30 citations,
June 2016 in “International Journal of Cosmetic Science” Hair loss in women links to inflammation around hair follicles.
28 citations,
April 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” GMG-43AC may help reduce unwanted hair growth and treat certain hair loss conditions.
26 citations,
April 2011 in “Skin Research and Technology” In vivo confocal scanning laser microscopy is an effective, non-invasive way to study and measure new hair growth after skin injury in mice.
25 citations,
September 2015 in “Journal of Investigative Dermatology” GasderminA3 is important for normal hair cycle transitions by controlling Wnt signaling.
24 citations,
November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
23 citations,
July 1989 in “Postgraduate medical journal” Spironolactone did not make hair thinner in women with excess hair growth.
22 citations,
October 2019 in “International Journal of Nanomedicine” The nanoparticles improved hair growth and enlarged hair bulbs.
20 citations,
February 2020 in “Stem Cells” Hes1 protein is important for hair growth and regeneration, and could be a potential treatment for hair loss.
20 citations,
December 2015 in “Journal of Pharmacopuncture” Thread-embedding therapy helped hair grow back in mice and might do the same in humans.
20 citations,
January 2015 in “Current problems in dermatology” Graying hair happens due to aging and might be delayed by new treatments.
20 citations,
January 2011 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.