Nightingale faeces beauty treatment. Pots containing skincare powder made from dried nightingale bird (Luscinia megarhynchos) faeces and white clay. This traditional skincare treatment has been used for centuries by Japanese kabuki actors and geisha to remove heavy makeup and as a facemask. The powder has been sterilised with ultraviolet light and must be mixed with water before application. Photographed at Hari's Salon, London, UK.