I read in one paper that collagen fibers in epidermis are randomly oriented in direction with respect to the skin surface. I can't locate that paper now. However, I came across this [paper][1] that indicates that collagen is always aligned parallel to the skin surface (page 3). Which one is correct?


  [1]: http://www.ate.uni-due.de/data/dokumente_2011/JPD_2011_Huclova.pdf