Systane Ultra UD is a preservative-free lubricant eye drop that provides extended protection and fast symptom relief for dry eyes. Each package contains 30 single-use vials of 0.7mL, making it convenient for daily use while ensuring sterility. This high-performance eye lubricant comes in convenient single-use vials that are preservative-free, making them ideal for sensitive eyes. The product contains Polyethylene Glycol 400 0.4% and Propylene Glycol 0.3% as active ingredients. Each vial should be discarded after single use. The drops can be used as needed for temporary relief of burning and irritation due to eye dryness. Store at room temperature and keep out of reach of children. If irritation persists for more than 72 hours, consult a healthcare professional.