Sigma Beauty is an American make-up brand. The website only sells brushes, mainly sets of brushes, supplemented by single brushes. There are many types and models. It is famous for 12 professional sets of brushes, each with a corresponding number. Sigma Beauty is very good in appearance design and hair quality, and it is cost-effective. Although the price is low, the quality can be equal to that of MAC genuine brushes. It is deeply loved by many beauty makeup artists and beauty experts.