The Ordinary Hyaluronic Acid 2% + B5 30MLThe molecular size of HA determines its depth of delivery in the skin. This formulation combines low , medium and high molecular weight HA, as well as a next generation HA crosspolymer at a combined concentration of 2% for multi depth hydration. This system is supported with the addition of Vitamin B5 which also enhances surface hydration. A more advanced HA formulation with 15 forms of HA, including precursors of HA, is offered by our brand NIOD in