2. Visit 2 (Baseline): Following signed, written informed consent and confirmation of eligibility, all subjects will have their lips photographed. Medical history, dermatologic exam, urine pregnancy test (if applicable), review of concomitant medications, clinical evaluations, and tolerability assessments will be performed at this visit. Study medication application to clean skin will be followed by a ninety minute incubation period under occlusion. Subsequently, patients will be exposed to blue light therapy for 16 minutes and 40 seconds. Post-therapy assessments will be performed afterwards, as well as education on appropriate sun protection methods.