Photodynamic Therapy
Photodynamic therapy (PDT) is a special treatment performed with a topical photo sensitizer called Levulan, or aminolevulinic acid (ALA), followed by the application of intense pulsed light (IPL). ALA is a natural substance found throughout the body that is a precursor for hemoglobin synthesis. When localized in the target tissue, ALA is converted to produce oxygen intermediates that destroy target tissue cells.
Simply stated, ALA-PDT removes sun-damaged pre-cancerous skin cells while improving fine lines and blotchy pigment. This treatment also has the unique ability to minimize pores and reduce oil glands, effectively treating stubborn acne vulgaris and acne rosacea while improving the appearance of some acne scars. PDT photo-rejuvenation is also known as Power PhotoFacial or Super PhotoFacial because the results are similar to those of three to five PhotoFacial/IPL treatments.
How much improvement can I expect?
Patients with severely sun-damaged skin manifested by actinic keratosis and texture and tone changes, that include mottled pigmentation and skin laxity may see excellent results with PDT. You may also see improvement of large pores and pitted acne scars. Active acne can be dramatically reduced.
How many treatments are necessary?
Achieving maximum improvement is greatly dependent on the protocol you and the doctor select. With a more aggressive protocol, just one or two treatments are usually required. If you select a less aggressive protocol, it may require two to five treatments. Treatments are spaced two to five weeks apart. Additional treatments may be done at periodic intervals in the future to maintain the rejuvenated appearance of the skin.
It is important to avoid sun exposure for the first two days following PDT and to avoid prolonged sun exposure thereafter. You should not use a tanning booth at any time before or during PDT treatments. Doing so will greatly increase your risk of a negative side effect.
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