Obagi Retinol + PHA Refining Night Cream harnesses slow-release Entrapped Retinol technology to work while you sleep, gently encouraging skin renewal and texture refinement. The addition of Polyhydroxy Acid (Gluconolactone) provides mild surface exfoliation, while eight nourishing ingredients ensure hydration and comfort. Clinically proven to improve skin smoothness by up to 29% and enhance tone evenness by up to 10%, this night cream visibly reduces fine lines and wrinkles for a clearer, more radiant complexion, often within 4 weeks. Well-tolerated by all skin types, it's the overnight solution for a refined, even-toned glow.