6x Retinol Super Serum contains the highest level of vitamin A in our Retinol line. It restores the look of smooth, beautiful and glowing skin with 3 Million I.U.ʼs of Retinyl Palmitate. This unique night-time accelerator encourages your skinʼs renewal process while you sleep. It lifts and firms as it targets lines, wrinkles, dark spots, pores, and blemishes. Add this intensive serum to your night-time Retinol skincare regimen to achieve optimal anti-aging effectiveness. Start by adding a few drops 3 to 4 nights per week and gradually increase to nightly usage.