The Sapphire X uses blue light therapy and topical heat to help your skin look clearer and minimize the appearance of blemishes. Sapphire X disinfects, detoxifies and eliminates bacteria under the skin, revealing a smoother and healthier complexion that will help your skin tone to appear more even. The Sapphire X uses blue LEDS in the range of 415 nm. The Sapphire X is an FDA class II medical device.