While nail enamel in its commercial form is a relatively modern invention, the use of nail color dates back much further. Ancient Egyptians used henna to stain their nails as early as 4000 B.C. During this time period and into Roman antiquity, colored nails were generally a sign of high social status and luxury as the dyes and pigments used were expensive. Only wealthy citizens and ar... https://www.newswirestats.com/nail-polish-size-and-share-trends-growth-analysis-and-forecasts/