... which is suitable for sensitive, acne, and oily skin. At the same time, the blue light can relax the skin ... slacking skin, complexion, prevention on the blemish problem.Yellow Light wavelength: 590nm +/- 10nmStimulate lymph and nervous system which ... fine lines, eliminate wrinkles, soothing, and balance sensitive skin.Improve sensitive skin and speed up metabolism. Specification Material of ...