Misc: Sterile 36 single-use Vials. Moderate dry eye symptom relief. Fast, soothing relief preservative free formula. Previously tears naturale ll free lubricant eye drops. GenTeal Tears Lubricant Eye Drops preservative free provide lasting relief for moderate dry eye with the convenience of a vial. Questions? In the U.S call 1-800-757-9195 (Mon-Fri 9AM-5PM CST) Alcon. Country of Origin: USA.