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Photodynamic Therapy PDT Treatment FAQs
What is Photodynamic Therapy (PDT)?
Photodynamic therapy was initially developed to treat cancer cells. PDT combines a drug (called a photosensitizer), which is preferentially absorbed by certain kinds of cells, and a special light source. When used together, the photosensitizer and the light destroy the targeted cells. PDT has more recently been used for the treatment of non-cancerous conditions such as acne and for facial rejuvenation. When used for these conditions, the photosensitizer is applied to the face and then the skin is exposed to a light source. Rapidly growing cells, oil glands, and other structures in the skin absorb the photosensitizer and are destroyed by a reaction caused by the light.
What is Photodynamic Therapy used for?
Facial PDT was initially developed for the treatment of precancerous lesions, called actinic keratoses. More recently, however, it has been used for photo rejuvenation, wrinkles, discoloration (age spots), visible veins, and acne.
How is PDT performed and how long does it take?
PDT is a new therapy and there are currently different methods in use. At MGNC Aesthetics we apply the photosensitizer Levulan to the skin. The photosensitizer is left on for a variable period of time. The Levulan is removed and the light source is applied to the skin. Reported side effects include: transient burning, stinging, swelling, and redness. These sides effects can last up to a week. PDT treatment times vary, but usually take 2-4 hours.
How many PDT sessions will I need?
The number of Photodynamic therapy treatments needed ranges from one to three (over a three month period.
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