Murine Professional Advanced Dry Eye Relief provides immediate, long lasting relief and protection from dry, irritated, itchy or strained eyes. The clinically proven formulation contains the most advanced active ingredient for dry eyes and is perfectly balanced to work with your tears to lubricate and restore the condition of your eye's surface to relieve dryness, soothe the associated irritation and provide protection from further moisture loss. Murine Professional Advanced Dry Eye Relief is preservative and phosphate free, making it ideal for frequent users, those sensitive to preservatives, wearers of all types of corrective contact lenses and those who have recently had laser eye surgery.