September 2004 in “Experimental dermatology” Melatonin directly affects mouse hair follicles and may influence hair growth.
112 citations
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February 2001 in “Journal of Investigative Dermatology” Neuropeptides affect hair growth, with some speeding it up and others slowing it down.
30 citations
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October 2016 in “Current research in translational medicine” Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.
375 citations
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July 2006 in “Journal of Investigative Dermatology” Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.
February 2026 in “Medicina” Hyaluronic Acid Profhilo® reduces skin inflammation and nerve-related pain in atopic dermatitis.