A game-changing treatment for firmer, youthful-looking skin, this multitasking anti-aging serum combines firming retinol with brightening lactic acid to visibly soften fine lines & wrinkles, even tone, smooth texture, and add radiance in as little as 14 days.* The gentle, yet potent, time-release formula delivers a steady stream of encapsulated retinol throughout the night to minimize the irritation of ordinary retinol—while transforming your skin. Size: 1 fl oz / 30 ml.