A billboard publicises new natural cocoa products to restore natural skin colour on Oxford Street in Accra on July 2, 2018. - Africa is experiencing a massive trend of skin bleaching, also called lightening or whitening, particularly in teenagers and young adults. The widening phenomenon is laden with health risks. Since the Government of Ghana banned hydroquinone in 2016, the main chemical component used in numerous skin-bleaching products, most of skin care brands have started to advertise products without hydroquinone or products to restore natural skin colour. (Photo by CRISTINA ALDEHUELA / AFP)