THE ORDINARY HYALURONIC ACID 2% + B5 30MLHyaluronic 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- and high-molecular weight HA as well as a next-generation HA crosspolymer at a combined concentration of 2% for multi-depth hydration in an oil-free 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 and instead sits on the surface and can draw moisture out of the skin making the surface feel soft and 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 and visible plumping without drawing water out of the skin solely to improve temporary surface hydration.Directions:Apply a few drops to face AM and PM before creams.Ingredients:Aqua (Water) Sodium Hyaluronate Sodium Hyaluronate Crosspolymer Panthenol Ahnfeltia Concinna Extract Glycerin Pentylene Glycol Propanediol Polyacrylate Crosspolymer-6 PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Trisodium Ethylenediamine Disuccinate Citric Acid Ethoxydiglycol Caprylyl Glycol Hexylene Glycol Ethylhexylglycerin Phenoxyethanol Chlorphenesin.ph 6.50 - 7.50 alcohol-free nut-free silicone-free vegan cruelty-free.What you get:1 x Hyaluronic Acid 2% + B5 30ml