HydraSense® Night Therapy for Dry Eyes comes in an innovative, sterile, multi-dose bottle with a filter system that allows the product to be preservative-free. The product contains sodium hyaluronate, a clinically proven, naturally-sourced lubricant that hydrates, lubricates and protects your eyes. It features a liquid gel-drop solution with a slightly thicker consistency to relieve your dry eyes at night or before bed. The easy-to-use liquid gel can also be used during the day. Try hydraSense® Night Therapy for Dry Eyes – effective, long-lasting relief of dry eye symptoms while being gentle on your eyes.