24 citations
,
September 2002 in “Dermatologic Surgery” The study found that hair follicles are above muscle connections in the scalp, which may help protect stem cell areas.
14 citations
,
July 2016 in “Anatomical Science International” The study suggests that the arrector pili muscle is important for hair health and its damage might contribute to hair loss.
77 citations
,
August 2020 in “Cell” Muscles and nerves that cause goosebumps also help control hair growth.
April 2010 in “The Journal of Urology” Human prostate cells produce more WISP1/CCN4 when there's not enough oxygen.
6 citations
,
January 2013 in “Experimental dermatology” Bimatoprost increases hair growth in mice without breaking down into other substances.