Helps Keep Lenses Clean while You Wear Them For soft and RGP contact lenses Helps remove protein and prevent buildup during lens wear Over the course of the day, a film of protein and other material can build up on your contact lenses, irritating your eyes and clouding your vision. This is especially true with today's extended wear lenses.Blink-N-Clean Lense Drops do more than just re-wet lenses. A few drops of the dual-cleansing formula gently removes debris and material that can cause irritation and discomfort. It helps remove protein build-up to keep your lenses as fresh as they can be your vision remains clear.Just a few drops of Blink-N-Clean Lense Drops, actually helps remove and prevent protein buildup.Blink-N-Clean Lense Drops are doctor recommended for use with soft and RGP contact lenses.Contents: Blink-N-Clean Lense Drops are a sterile, isotonic, buffered, preserved solution. This aqueous formulation includes purified water, sodium chloride, preserved with polyhexamethylene biguanide 0. 0001% tromethamine as a buffer, hydroxypropyl methylcellulose as a lubricant, tyloxapol as a surfactant, and edetate disodium as a chelating agent. This preparation contains no chlorhexidine, no thimerosal and no other mercury containing ingredients. Suggested Use: To lubricate and re-wet your lenses, and to help prevent and remove protein build up, apply one or two drops to each eye, then blink several times. Use up to four times per day. UPC: 827444000126 Weight: 0.41 lbs