The core activity of Stilaar AG is the manufacture and sale of nail products, as well as the provision of educational and support services for nail technicians and cosmetics companies. This includes online courses, local courses, marketing and business consulting, as well as the marketing of nail products such as gel polish, glitter polish, building gels, and nail art accessories. The company positions itself as a partner for nail technicians and cosmetics companies to support them in developing their skills and building successful businesses.