Apparatus for applying light to an area of skin and for simultaneously electrically stimulating that area of skin, the apparatus including at least one flexible pad adapted to be placed onto or over the area of skin to be treated, the or each pad including a flexible circuit board providing, in use, electrical power to an electric muscle stimulation (EMS) electrode and an array of Light Emitting Diodes (LEDs) interspersed therebetween whereby to simultaneously electrically stimulate the area of skin beneath the pad and also provide light to that area from the LEDs.