 171 citations
,
  July 2007   in “Journal of Investigative Dermatology”
           171 citations
,
  July 2007   in “Journal of Investigative Dermatology”    A substance called DKK-1 increases in balding areas and causes hair cells to die when exposed to DHT.  
               96 citations
,
  March 2007   in “Developmental biology”    The study found that the protein Dkk4 helps regulate hair growth by controlling Wnt signaling in mice.  
      13 citations
,
  November 2010   in “Experimental Dermatology”
           13 citations
,
  November 2010   in “Experimental Dermatology”    Vitamin C derivative reduces hair loss-related protein in cells.  
      10 citations
,
  July 2015   in “Journal of Cosmetic Dermatology”
           10 citations
,
  July 2015   in “Journal of Cosmetic Dermatology”    Higher DKK-1 levels found in hair loss patients; L-ascorbic acid 2-phosphate, L-threonate, and ginsenoside F2 may help promote hair growth.  
      9 citations
,
  January 2019   in “American Journal of Dermatopathology”
           9 citations
,
  January 2019   in “American Journal of Dermatopathology”    DKK-1 gene linked to hair loss in AGA and AA patients; more research needed for potential therapy.