Sigma Beauty is an American brand known worldwide for its unique makeup brushes and care products. Since 2012, the company has also been producing high-quality decorative cosmetics for home or professional use based on proprietary formulas. The founders and ideologists of the brand are scientists Simone Xavier and René Xavier Philho, who launched Sigma Beauty in 2009 in the USA. Since the development of its first product, technological innovation has become a hallmark of the brand: 'We were inspired by three driving forces: quality, functionality, and innovation. Sigma is the letter 'Σ' of the Greek alphabet, a mathematical symbol representing the sum, meaning the connection of all our passions and virtues,' say the founders.