YSL is a French luxury fashion house founded by Yves Saint Laurent and his partner Pierre Bergé. The brand specializes in the production of ready-made clothing, August couture, leather accessories and shoes, and its line of cosmetics YSL Beauty is owned by L'oreal.founded in 1961, the brand is considered one of the most prominent and important fashion mazons in the world and has become famous for women with modern and different clothing such as tuxedo coats. Today, the Saint Laurent brand of Paris produces many products, including ready-made clothing for women and men, leather products, shoes and jewelry.