Because your eyes are so important Saline Solution B + L Boric Acid; Sodium Borate; Potassium Chloride; Sodium Chloride; Preserved with Polyaminopropyl Biguanide (0.00003%); Edetate Disodium (0.025%) Never re-use this solution. Keep the bottle tightly closed when not in use. Store at room temperature. Uses: The extra gentle, pH-balanced formula for rinsing and storing soft contact lenses. With potassium, a component of natural tears. Sterile. No sorbic acid and no thimerosal. Not for use as a disinfectant. If you are allergic to any ingredient in this product, do not use it.