We just had a new paper published!
Elena Tsankova and Arvid Kappas show that the smoothness of facial skin affects not only how attractive and healthy but also how trustworthy and competent one appears! The authors also present initial evidence that facial skin influences the perception of physical and psychological trait via slightly different mechanisms.
Check out the full publication here.
And here a couple of links to the paper in the press:
German:
http://www.jacobs-university.de/news/noch-etwas-puder-glatte-haut-macht-serios
http://www.bild.de/newsticker-meldungen/ratgeber/glatte-haut-wirkt-serioes-43639666.bild.html
http://www.scinexx.de/wissen-aktuell-19594-2015-12-02.html