There are many different light therapy’s used for/that have different benefits. The purported benefits include an increase in the amount of collagen in the skin, which can reduce the appearance of wrinkles and other stigmata of aging. Other uses of LED light therapy include acne, dermatitis, eczema, psoriasis, rosacea, scarring and sun damage. LED (light-emitting diode) light therapy treats various skin conditions and concerns, it comes in different types, including red light LED therapy and blue light LED.