Institut Esthederm Cellular Concentrate Fundamental Serum 1.3oz, 40ml (Professional Size /) Institut Esthederm Cellular Concentrate Fundamental Serum has the following features: Contains powerful active ingredients that re-program the cells basic functions. Progressively improves skin’s main problems: dryness, shine, sensitivity, reactivity & sagging. Formulated with Cellular Water that optimizes the cells energy environment & boosts their activity. Developed with Time Control System that slows down premature aging factors. Enhances the effectiveness of other face creams. Skin appears firmer, brighter, stronger, more flexible & translucent.