To open, twist and pull tab to remove. Instill 1 or 2 drops in the affected eye(s) as needed and discard container. Use only if single-use is intact. Store at 59 degrees - 86 degrees F (15 degrees - 30 degrees C).Inactive IngredientsBoric Acid; Carbomer Copolymer Type A; Castor Oil; Erythritol; Hydrochloric Acid; Levocarnitine; Purified Water; Sodium HydroxideUsesFor the temporary relief of burning, irritation and discomfort due to dryness of the eye or exposure to wind or sun. May be used as a protectant against further irritation. A preservative-free, go-to drop that marks a new era in artificial tears for sensitive eyes. 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. Safe to use as often as needed. Contains 30 single-use containers. Sterile.WarningsFor external use only. To avoid contamination, do not touch tip of container to any surface. Do not reuse. Once opened, discard. Do not touch unit-dose tip to eye. If solution changes color, do not use. Stop use and ask a doctor if you experience eye pain, changes in vision, continued redness or irritation of the eye, or if the condition worsens or persists for more than 72 hours. Keep out of reach of children. If swallowed, get medical help or contact a Poison Control Center right away.