When Levulan® Kerastick Topical Solution is applied to Grade 1 or 2 AKs, the solution is absorbed by the AK cells where it is converted to a chemical that makes the cells extremely sensitive to light. When the AK cells are exposed to the BLU-U®, this light causes reactions which destroy the AK cells.
Step 1: Application of the Levulan Kerastick Topical Solution
The first step in Levulan PDT is the application of the Levulan Kerastick Topical Solution, 20% to the individual AKs on your face or scalp by your dermatologist or other health care professional. This solution is an acid that occurs naturally in your body. It makes the AKs more sensitive to light. This application prepares the AKs for step 2 in the Levulan PDT treatment. Once the Levulan Kerastick Topical Solution is applied to the AKs, your doctor will direct you to wait the recommended time in order to allow the solution to penetrate the target cells we mentioned earlier.
Step 2: BLU-U Treatment
After your incubation period, you will receive a blue light treatment, which is the second and the final step in the treatment. The BLU-U treatment time is 16 minutes and 40 seconds.
