Next-gen Dermalogica Smart Serum delivers what your skin needs, when it needs it. SmartResponse technology reacts to skin's needs to hydrate, brighten, soothe, and address fine lines and wrinkles. SmartResponse technology helps stop skin damage before it starts - using four smart actives which, when triggered, hydrate, brighten, soothe, and address the appearance of fine lines and wrinkles in response to skin's changing needs. Oligosaccharides from hydrolyzed Beta Glucan respond to dehydration signals. Hydrolyzed Wheat Flour activates as needed to brighten.