Among cosmetologists, hairdressers and nail technicians make up a large part of the working population. She founded the "National Hairdressers and Cosmetologists Association", now known as the National Cosmetology Association. Cosmetologists are trained and licensed to perform cosmetic treatments to the hair, skin, and nails. Cosmetologists recommend wild rose seed oil as a natural skin-vitaliser. No increased risk for cosmetologists has been found.