Low and medium weight Hyaluronan molecules penetrate deep into the skin’s structure, providing maximum below-the-surface hydration to the dermis and in turn rehydrating skin cells over time. High weight Hyaluronan molecules deliver immediate intensive hydration to surface layers of the skin. Facial skin is left looking youthfully firm, radiant and noticeably smoother. This formulation is ideal for use as an intensive treatment to counteract the effects of environmental exposure including sunburn, windburn and overexposure to heating or air-conditioning. This serum is also recommended for use as an instant plumping and priming treatment before an evening out.