Hyaluronic Acid (HA) can attract up to 1 000 times its weight in water. The molecular size of HA determines its depth of delivery in the skin. This formulation combines low- medium- & high-molecular weight HA as well as a next-generation HA crosspolymer at a combined concentration of 2% for multi-depth hydration in a water-based formula. This system is supported with the addition of Vitamin B5 which also enhances surface hydration. Note: Hyaluronic Acid is found in the skin naturally but its natural function within the skin is not hydration. Many products have used HA to claim hydration benefits but HA is too large of a molecule to penetrate the skin & instead sits on the surface & can draw moisture out of the skin making the surface feel soft & hydrated temporarily while making you feel like you need more HA after the product is rinsed. This formula uses three forms of HA with varying molecular weights as well as an HA crosspolymer to offer multi-depth hydration & visible plumping without drawing water out of the skin solely to improve temporary surface hydration