Take the details from the overview under" ABOUT US ." Doriana A. Antonacci took part in the 2020 World Nail Design Championship. Doriana Cosmetics GmbH has set itself the task of creating highly qualified and technically sound training courses for nail designers. To prepare nail designers for their new profit and performance-oriented future. With the help of cooperation companies and constantly expanding knowledge. Targeted further training and the promotion of the entire job profile ensure the high quality for the customers of the future nail salons.