A patent for a lip balm containing sodium hyaluronate (aka hyaluronic acid. This also contains other ingredients) which will plump lips and stimulate collagen production in the area for anti-ageing purposes (Supersmile parent company). This patent clearly states: “Hyaluronic acid maintains tissue hydration and helps retain water within the skin tissue…The swelling of the sodium hyaluronate particles increase the volume of the lip tissue, reducing wrinkles and plumping the lips.”