Burning? Irritation? Discomfort? Your eyes deserve Xtra—an advanced formula for dry eye symptom relief that lasts. Enriched with the antioxidant Trehalose (inactive ingredient) and innovated with moisture-locking technology, Refresh® Relieva® PF Xtra works fast to soothe, comfort, and protect. These preservative-free artificial tears are safe to use as often as needed, with a soft squeeze multidose bottle featuring a double lockout system that keeps drops sterile and delivers a consistent drop every time.