Highly concentrated vitamin C serum The VICHY LIFTACTIV Vitamin C Serum combines 15% pure vitamin C with vitamin E, pycnogenol, and hyaluronic acid. This helps counteract a dull complexion, intensely hydrates the skin barrier, and prevents the effects of oxidative stress. For perfectly cared-for and radiantly beautiful skin. Application: Gently press the center of the applicator to dispense a few drops of the anti-aging serum with vitamin C and hyaluronic acid onto your skin. Apply the serum to cleansed skin, avoiding the eye area. Wait a moment. Then apply your daily moisturizer.