To preserve the results of your peel, we always suggest our patients continue to apply Cosmelan 2 daily for up to one year to help suppress any additional melanin production. The most critical to your results and how long you can enjoy them will be limiting or protecting against sun exposure. Make broad-spectrum sunscreen with an SPF of 30 or higher, like Elta MD, part of your daily beauty routine to reduce any new sunspots from developing.