iS Clinical Active Serum – Anti-Aging, Brightening & Acne Treatment (0.5 oz )The iS Clinical Active Serum is a fast acting, results driven formula that tackles multiple concerns in one step. This multitasking serum smooths fine lines, brightens uneven skin tone, and helps reduce blemishes with botanical acids and antioxidants. Improves fine lines & wrinkles Brightens dull, uneven skin Helps reduce blemishes & pore congestion Fast absorbing, lightweight formula Size: 0. 5 oz