The Estee Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum is designed to target multiple signs of aging while supporting the skin's natural nighttime renewal process. This multi-recovery complex works to boost skin's overall resilience and radiance. Utilize this serum nightly on clean skin to optimize your skin's repair mechanism. During the day, it helps protect against environmental factors, promoting a smoother, more even-toned complexion over time.