Other Information: Store at room temperature. Misc: Dry eye symptom relief. Soothing relief. Previously Tears Naturale II. Sterile. Questions? In the US call 1-800-757-9195 (Mon-Fri 9AM-5PM CST). GenTeal Tears Mild Lubricant Eye Drops contains Polyquad preservative, a safe and comfortable preservative, gentle enough for even sensitive eyes. Country of Origin: USA.