... of light: red , yellow, green, blue, purple,laser LED skin rejuvenation skincare beauty equipment Photodynamic is cold light , and could ... not produce high heating , and could not burnt skin, Transfer light energy into cell inter energy , accelrate the ... It can cause unexpected effects of repair aging skin, ance skin, patchs skin,wrinkled skin,allergic and the sun brens the skin, what is more, ...