Photodynamic therapy is a more intense form of light therapy that includes first topically applying a photosensitizing agent that makes the skin more...
Photodynamic therapy is a more intense form of light therapy that includes first topically applying a photosensitizing agent that makes the skin more sensitive to light, and then applying medical-grade light therapy to the skin. It is thought to work primarily by reducing the size and activity of skin oil (sebaceous) glands.
The procedure is usually performed multiple times (up to 5) in weekly or biweekly intervals. Results are usually seen 1 to 2 weeks after the procedure and your skin will continue to improve after your last session.
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Pros:
It works really good, the number of pimples I wake up to everyday has reduced dramatically. However it takes a few treatments to see any significant results. But if you get 3 or more treatments it should clear a majority if not all of your acne.