Microscopic Discrimination of Nacreous Nail Enamels

Abstract

  Microscopic observation was applied to nacreous nail enamel samples collected from domestic and foreign cosmetics manufacturers. Using reflected and transmitted light, some kinds of nacreous pigments in nail enamel samples could be identified enabling us to classify them into three types: bismuth oxychloride, mica and mica+bismuth oxychloride.
  Microscopic observation by reflected and transmitted light of nacreous pigments and other coloring pigments allowed us to discriminate all of the nacreous nail enamel samples.