Blue and Red light Acne Treatment

Sunlight can improve skin care in the short-term. However, recent studies have shown that exposure to sunlight worsens acne in the long-term [citation needed]. More recently, visible light treatments (phototherapy) have successfully treated mild acne--in particular intense violet light (405-420nm) generated by purpose-built fluorescent lighting, dichroic bulbs, LEDs or lasers. Used twice weekly, this procedure resulted in a reduction of the number of acne lesions by about 64 percent. Studies show that this treatment is even more effective when applied daily. Scientifically speaking, the method of violet light treatment is effective because porphyrin (Coproporphyrin III), produced within P. acnes, generates free radicals when irradiated by 420nm and shorter wavelengths of light. Over the course of a few days, these free radicals ultimately kill the bacteria they spawned from. Since porphyrins are not otherwise present in skin, and the UV light applied is safe in its spectrum, this treatment is safe and licensed by the United States Food and Drug Administration (FDA). The ultra violet treatment works even better with red visible light (660nm) resulting in a 76 percent reduction of lesions after three months of daily treatment for 80 percent of patients. The overall skin clearing was similar or better than benzoyl peroxide. Unlike most of the other treatments, there are few if any negative side effects to this treatment and a development of bacterial resistance seems very unlikely. After treatment, a patient can achieve clear skin with topical or oral antibiotic treatments. The equipment or treatment, however, is relatively new and expensive, although the total cost of ownership may outweigh other costs (such as the total cost of benzoyl peroxide, moisturizer, and washes) over a couple of years.

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