iS Clinical® serums are formulated with high concentrations of powerful ingredients for dramatic anti-aging, lightening or soothing results. Vitamin C and Vitamin E are featured prominently in iS Clinical® serums, providing antioxidant benefits, hydration, brightening of the complexion and firming of your skin. Alpha hydroxy acids (AHAs) continuously exfoliate and brighten the skin, while increasing firmness and elasticity. Peptides and retinol reinforce the firming effects, smoothing and plumping fine lines and wrinkles. Hyaluronic Acid rounds out these serums by driving these active ingredients deeper into the skin while retaining hydration and moisture.