4 citations
,
  July 2010   in “International Journal of Cosmetic Science”    Curved human hair has different structures on its convex and concave sides.  
      January 2009   in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi”
           January 2009   in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi”    Curved human hair has different structures on each side, which might cause its shape and is similar to wool.  
      February 2024   in “Journal of Dermatological Science”
           February 2024   in “Journal of Dermatological Science”    Curved hair can develop when hair cells merge abnormally during growth.  
               13 citations
,
  September 2008   in “PubMed”    Japanese women's curved hair has an uneven internal structure and varying amino acid composition.  
               July 2009   in “International Journal of Cosmetic Science”    Japanese women's curved hair has an uneven internal structure and varied amino acid composition.