Biotherm is one of the luxury brands owned by L’Oreal. Its name hints at the thermal spring waters under the Pyrenees that are known for their rejuvenating properties. These spring waters contain mineral planktons that are beneficial to the skin. In case you didn’t know, every Biotherm product utilizes these truly unique thermal waters, from cleansers to moisturizers. You are invited to browse its full line of products online.