Photodynamic Therapy is a treatment performed using a chemical solution called ALA or Levulin. Levulin is found naturally in your body and when it is applied to your skin it makes active cells more sensitive to light. The combination of the chemical Levulin and a special light source is why the treatment is referred to as photdynamic.
PDT is especially useful for removing sun damaged skin, actinic keratosis, fine lines, and blotchy pigmentation. This treatment can also reduce pore size and over-active oil glands as well as improving some acne scars.