What It Is: Concentrate of pure active ingredient measured with pharmaceutical precision for maximum efficiency. Vitamin C is a valuable source of energy for both body and skin. In addition to its revitalizing properties, it reduces signs of fatigue and boosts the energy levels of the skin's metabolisms. What It Does: Energizing concentrate ideal for morning use. Can be used as a cure during winter or with the change of seasons, after exhaustion or convalescence and also as a preventive measure. Concentrate of pure active ingredient measured with pharmaceutical precision for personalized care at home. The special dropper bottle allows you to dose the active ingredient with extreme precision. For maximum effectiveness, this serum delivers 0.2 mg of active ingredients in each drop. How to Use: Two methods of application to suit different skin needs. Apply a few drops to the face before using your usual skincare product or mix with skincare product upon application.