Contribution of Light Therapy to Acne Treatment

The treatment of acne vulgaris is advancing rapidly thanks to laser therapies and high-intensity light sources.

Several varieties of lasers can be used to treat acne and address the skin damage and scarring that is commonly associated with acne. New research has revealed that red and blue light therapies can inhibit bacterial growth and encourage healthy tissue to regenerate.

High intensity light within the red spectrum can reduce inflammation and promote the healing process. It encourages cells to proliferate and collagen to re-form. The research suggests that particular wavelengths of red light may be absorbed by important molecules that, once stimulated, induce cell growth and contribute to wound healing.

The same high intensity light in the blue spectrum is effective at killing the main bacteria that causes acne. According to clinical research, when blue light therapy is administered bi-weekly or daily, it can markedly reduce both the number and severity of acne lesions.

Light emitting diodes (LEDs) are commonly used to administer both light therapies, but lasers are used occasionally. Blue and red light therapy can be combined in photodynamic therapy (PDT) or intense pulsed light (IPL) treatment.

Source:  http://thescienceofacne.com/light-therapy/

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