Hyaluronic acid (HA) can absorb up to 1000 times its own weight in water. The size of the HA molecule decides how deep into the skin it can reach. The formula contains a combination of HA of low, medium, and high molecular weight, as well as the next generation HA polymers. Together, the HA ingredients make up a concentration of 2% – a deeply hydrating combination. The hydration of the skin surface is reinforced by Vitamin B5.