... pore,skin whiten -acne treatment,skin care.. Pdt (led light skin rejuvenation) MachinePDT-3H),China,maker&exporter. 1).Characteristics: ... -- LED technology using the high purity of the light and act on the skin tissue securely, increasing skin elasticity ... , effectively killed Propionibacterium acnes, eliminate dermal patches, freckles and chloasma. LED is originated from the United States Department ...