The device applies substances directly to body tissues, improving cell transplant and treatment processes.  
     
           68 citations
,
  March 2018   in “Biomaterials”    Tiny needles with valproic acid can effectively regrow hair.  
               March 2024   in “Journal of pharmacy & pharmaceutical sciences”    Polymeric microneedles offer a less invasive, long-lasting drug delivery method that improves patient compliance and reduces side effects.  
               April 2025   in “European Journal of Pharmaceutics and Biopharmaceutics”    The new drug delivery system improves bicalutamide skin retention for better treatment of hair loss.  
     
           7 citations
,
  April 2018   in “Cosmetics”    Lipids in Japanese hair help maintain glossiness and structure.