Back in 1961 founded the Yves Henri Donat Mathieu-Saint-Laurent fashion house Yves Saint Laurent. He made the brand into a world famous brand, which since then still often cited as one of the largest brands! YSL has a great skin care that combines the latest research, elegant routines, glamor and sensory indulgence. Blue. skin care series Forever Youth Liberator is based on glycobiologi showing exceptional results on all forms of aging.