During normal use, genuine leather upholstery, like other materials, will collect dust and dirt. Contaminants must be removed as they can eat into the skin and cause damage.
Thin skin needs to be looked after and cleaned if necessary. Washing the leather thoroughly with soap and water will make the leather shiny and last a very long time. Treat the leather with a chamois cloth using a neutral detergent and warm water. Wash your skin thoroughly. Wipe it with a damp cloth and then dry it with a dry cloth. Do this as often as possible so that the skin does not become oily.