8 citations
,
March 2014 in “Experimental Dermatology” Light and temperature affect the daily skin function rhythms in hairless rats, with temperature influencing water loss but not skin hydration.
127 citations
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January 2015 in “Journal of Biological Rhythms” The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.
9 citations
,
July 2020 in “Experimental Dermatology” Topical L-thyroxine may help with wound healing and hair growth but should be used short-term due to potential risks.
11 citations
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April 2013 in “SpringerPlus” Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.
349 citations
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January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.