MPT cosmetic studies on hundreds of volunteers have been performed in the US, Japan, China, France, and Germany using the CE certified tomographs Dermainspect and MPTflex. The research studies are focusing on the evaluation of anti-ageing products, the evaluation of laser treatments, and the biosafety of sunscreen nanoparticles. The cosmetic companies L’Oreal, Beiersdorf, Chanel, P&G, Kao and others employ MPT technology.