To reduce the risk of side effects, such as changes in pigmentation, you should stay out of the sun for at least 4 weeks before your treatment. It's also a good idea to stop using products with retinol in them several days or weeks before laser treatment and to avoid the use of sunless tanners. Dr. Miller, Dr. Doherty, Dr. Moustafa or Dr. Michelon will review this with you during your consultation and your pre-treatment visit.