FORMULATION: Non-preserved, triple-action formula that lubricates and hydrates dry, burning, irritated eyes ADVANCED: Works on all three layers of your tear film; Protects natural tears with a lipid-enhanced drop by reducing tear evaporation FEATURES: HydroCell technology enables hydration and maintains the volume of cells on the eye's surface DESIGNED: To be used as a protectant against further irritation CONVENIENCE: Come in sterile, on-the-go drop you can take with you anywhere Refresh Optive Advanced Lubricant Eye Drops 10 ml is a preservative-free, triple-action formula that lubricates and hydrates dry, burning, irritated eyes, and helps prevent tears from evaporating. It also features HydroCell technology which enables hydration and maintains the volume of cells on the eye's surface. The result? Triple-action relief dry, sensitive eyes. It comes in sterile vials you can take with you anywhere; preservative-free artificial tears.