30 years of dark spot brightening expertise in one bottle. Dr. Murad's next generation of powerhouse brightening ingredients take on the look of the most stubborn dark spots while treating your skin with the same care that a dermatologist would. This transformative, daily use serum goes one step beyond correction with antioxidant resorcinol that helps prevent the look of dark spots for a more even skin tone in the future. Glycolic acid, one of the first and most sought-after exfoliants in Dr. Murad’s dermatology practice, removes dulling surface cells to quickly enhance natural radiance, penetration, and performance of ingredients for better results.