L’Oréal is a French personal care company headquartered in Clichy, Eau-de-Seine, with a registered office in Paris. It is the largest cosmetic company in the world. L’Oréal has devoted its activities to the field of cosmetics: focusing on hair colour, skin care, sun protection, make-up, perfume and hair care. L’Oréal is active in the fields of dermatology and pharmaceuticals, and is also the holder of the highest patented nanotechnology.