Murine Professional Advanced Dry Eye Relief is preservative & phosphate free. This product offers dual action for dry eyes with added Aloe Vera to soothe and refresh. It provides fast relief and lasting protection from dry, irritated, itchy, or strained eyes, ensuring lasting comfort and relief. The ingredients are balanced to work with your tears. These dry eye drops are contact lens friendly and suitable for use with all types of contacts. It's an advanced treatment for dry eyes caused by overuse of computers, screens, and mobile devices, as well as environmental factors like cold weather, wind, dust, pollution, heating, or air conditioning.