Light Therapy—Tomorrow’s Technology Today
For many years dermatologists have used light to treat a wide variety of skin diseases. Psoriasis and various forms of eczema retreat when exposed to sunlight. Certain forms of cancer are also treated with a combination of UV light and psoralens, photosensitizing chemicals administered orally or topically to increase the skin’s reaction to light for a therapeutic effect. Now, light therapy, also known as phototherapy, is emerging as an important treatment for aging skin and inflammatory skin diseases such as acne.
A study reported in the British Journal of Dermatology evaluated the use of blue light and a mixed blue and red light in the treatment of acne vulgaris (the most common form of acne). One hundred and seven patients with mild to moderate acne vulgaris were randomized into four treatment groups: blue light, mixed blue and red light, cool white light, and 5% benzoyl peroxide cream. After 12 weeks of active treatment, a mean improvement of 76% in inflammatory lesions was achieved by the combined blue–red light phototherapy; this was significantly superior to that achieved by blue light alone, by the benzoyl peroxide, or by the white light. The researchers concluded that phototherapy with mixed blue–red light, probably by combining antibacterial and anti-inflammatory action, is an effective means of treating acne vulgaris of mild to moderate severity, with no significant shortterm adverse effects. This is very exciting news because inflammation is at the root cause of both acne and the signs of aging.
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Posted in Skin Health
