If you’re ready to lighten dark spots, the best time to start the Obagi Nu-Derm System is during the late fall or winter. Since hydroquinone blocks melanin production, it increases sun sensitivity. During the summer, you expose your skin to more direct sunlight, and the risk of skin sensitivity is higher. So, start the Obagi Nu-Derm System in the cooler months, when there is less sun (
here’s an interesting discussion on UV in the winter). Nu-Derm is considered a “corrective line”, and your dermatologist or esthetician will probably have you switch to a maintenance regimen after 6 months or so. By that time, pigmented areas will be lighter, and you’ll have a more even skin tone. Just in time for summer fun again!