L'Oreal was founded in 1909 by a French chemist and is now the world's largest cosmetics company. Headquartered near Paris, L'Oreal started in the hair color business but expanded into skin care, makeup, perfumes, and hair care. It has a portfolio of brands like L'Oreal Paris, Maybelline, Garnier, Lancome, and Vichy. L'Oreal is the top patent holder in nanotechnology in the US. While cosmetics are its main revenue driver, it also operates in dermatology and pharmaceuticals.