Other Information: Store at room temperature. Preservative-free dry eye relief. Convenient single vials on-the-go. Extra moisturizing for sensitive eyes. Longer lasting hydration (vs. Systane Ultra Lubricant Eye Drops). No.1 doctor recommended brand (Based on a survey of eye care professionals. Data on file). Hydro boost technology. Sterile. Exclusive formula. Not found in store brands. Experience preservative-free relief that's extra moisturizing for sensitive eyes. Common Dry Eye Symptoms: Burning or stinging; fluctuating vision; irritation; watery eyes. www.systane.com. www.alconpatents.com. Questions? In the U.S. call 1-800-757-9195. Made in France.