Make your dry eyes feel better with the drops doctors recommend. Preservative-Free Safe to use as often as needed No shaking required Enhanced formula that lubricates, hydrates, and protects natural tears Refresh Optive Advanced, a preservative-free, go-to drop that works on all three layers of your tear film;This clinically proven triple-action formula: Lubricates for moisturizing dry eye relief Hydrates the eye surface cells Protects your natural tears with a lipid-enhanced drop by reducing tear evaporation Now, you can have long lasting comfort in a visibly light tear. Suggested Use: To open, twist and pull tab to remove. Instill 1 or 2 drops in the affected eye(s) as needed and discard container. Other Information: . Store at 59°-86°F (15-30°C) Retain this carton for future reference UPC: 300234491309 Weight: 0.57 lbs