February 2023 in “Biophysical Journal” Light can be used to stimulate ear hair cells, improving speed and consistency over previous methods.
March 2015 in “DergiPark (Istanbul University)” PUVA treatment is effective and safe for alopecia areata.
6 citations
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December 2011 in “Nature” The circadian clock in skin cells controls their growth and rest cycles.
April 2026 in “Mendeley Data” April 2026 in “Mendeley Data” 8 citations
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January 2025 in “JADA Foundational Science” Photobiomodulation therapy can reduce pain and inflammation and help heal tissues, but more research is needed to improve its effectiveness and safety.
12 citations
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October 2023 in “Tissue Engineering and Regenerative Medicine”
May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and move by activating certain cell pathways.
4 citations
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March 2013 in “The American Journal of Cosmetic Surgery” Melanin absorbing light is necessary but not enough for effective hair removal by light treatment.
53 citations
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July 1981 in “Journal of Endocrinology” α-MSH and cyclic AMP boost melanin production, while cyclic GMP and melatonin reduce it.
23 citations
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December 2001 in “Lasers in Surgery and Medicine” Permanent hair removal is hard, but using longer laser pulses at lower power might improve results.
2 citations
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January 1975 in “Archives of Dermatological Research” Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.
July 2023 in “Photobiomodulation, photomedicine, and laser surgery” Photobiomodulation increased hair count in men with hair loss after 5 weeks, with no further increase after 10 weeks.
37 citations
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January 2023 in “Ophthalmology and Therapy” Low-level red light therapy can shorten eye length in some myopic children.
27 citations
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December 2015 in “Clinical and Experimental Dermatology” Diphencyprone helped most patients with alopecia areata regrow some hair.
77 citations
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January 1980 in “Carcinogenesis” TPA is about 50 times more effective at promoting tumors than MZ.
166 citations
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August 2010 in “Proceedings of the National Academy of Sciences of the United States of America” Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.
3 citations
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May 1979 in “PubMed” 137 citations
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January 2006 in “Frontiers in bioscience” CRH in the skin acts like the body's stress response system, affecting cell behavior and immune activity.
August 2006 in “Experimental dermatology” Human scalp hair follicles can produce and respond to several hormones, affecting hair growth and pigmentation.
2 citations
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January 2022 in “BioMed Research International” LED light therapy at 863 nm wavelength can slow down skin tumor growth and reduce inflammation in mice.
512 citations
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February 2008 in “Science” Reactive oxygen species and calcium create a feedback loop that shapes root hair cells.
January 2011 in “Yearbook of Endocrinology” 109 citations
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April 1997 in “Archives of Dermatological Research” Mast cell and nerve fiber interactions in mouse skin change with the hair cycle.
September 2025 in “Lasers in Medical Science” 2 citations
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May 2025 in “Diagnostics” ATR-FTIR spectroscopy could help monitor alopecia areata treatment response non-invasively.
March 2024 in “Medical lasers” Multiple-wavelength radiation helps hair grow by boosting early hair follicle development.
30 citations
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March 2015 in “PLoS ONE” Thyroxine can adjust the body's peripheral clock, potentially helping treat clock-related diseases.
Female rats showed more panic-related behavior than males, influenced by hormonal cycles and certain drugs.