Other Information: (Daytime Systane Ultra Lubricant Eye Drops): Store between 59-77 degrees F (15-25 degrees C). (Nighttime Systane Gel Drops Lubricant Eye Gel): Store between 59-77 degrees F (15-25 degrees C). Misc: Sterile. Daytime: Ultra Lubricant Eye Drops. Extended protection. Fast symptom relief. Nighttime: Gel Drops Lubricant Eye Gel. Intensive gel shield. Easy application. Enduring relief. This value pack gives you long lasting protection and fast symptom relief during the day, as well as an intensive gel shield for enduring relief at night. Questions? In the US call toll free 1-800-757-9195 (Mon-Fri 9AM-5PM CST; www.systane.com. Country of Origin: USA.