Cosmetics in a variety of forms date back to early civilizations, with the need to improve ones personal appearance being an important factor in attracting a mate. Over the years the ingredients have changed dramatically as we discovered how to manufacture our own scents and cosmetic formulas. The realization of the dangers of many common ingredients also greatly affected the growing industry. Ancient Egyptian aristocracy made use of minerals to provide colour and definition to their facial features. During the era of the Greek Empire it was common to use face paints, while cosmetics in ancient Rome contained starch, olive oil, beeswax, saffron, rose water, and lead.