TLDR Hair is important for social and sexual communication in humans.
The hair follicle, an infolding of the superficial epithelium enclosing the dermal papilla, was responsible for the formation and production of hair fibers. While hair played a crucial role in the survival and evolution of many mammalian species, in humans, it had no vital function but was significant in social and sexual communications. This importance was evident in the interest in hair cosmetics and the number of people seeking medical advice for hair problems.
102 citations
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February 2008 in “The FASEB Journal” One minoxidil-sensitive potassium channel exists in human hair follicles.
30 citations
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April 2018 in “Experimental Dermatology” The article concludes that developing in vitro models for human hair structures is important for research and reducing animal testing, but there are challenges like obtaining suitable samples and the models' limitations.
27 citations
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January 2015 in “International Journal of Trichology” The supplement helps improve hair growth and reduce hair shedding.
10 citations
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November 2017 in “Dermatologic Clinics” More men are getting cosmetic procedures, mainly for aging, hair loss, and to keep masculine features, with growing interest in both surgical and noninvasive treatments.
37 citations
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August 2016 in “Clinical, Cosmetic and Investigational Dermatology” The document concludes that better treatments for CCCA are needed and more research is required to understand its causes related to hairstyling and genetics.