Double Serum targets the signs of ageing associated with the natural ageing process, as well as those caused by lifestyle and the environment. The unique double formula combines 22 powerful plant extracts, including the iconic Curcuma extract, with 5 new pure active molecules to stimulate the 5 vital functions of the skin (regeneration, nourishment, oxygenation, hydration and protection). The texture is composed of 95% ingredients of natural origin. Inspired by the science of epigenetics, the unique Epi-Ageing Defense Technology fights the signs of ageing caused by lifestyle. Environmental influences can cause visible signs of skin ageing. Pile cane extract helps to strengthen the skin's resistance to its environment.How to use: Turn the dosage knob to adjust the amount according to skin type, skin needs and desire. Using your fingertips, apply 3 strokes to each cheek, 3 strokes to the forehead and 3 strokes to each side of the neck.