Are your contact lenses calling it quits before your eyes do? Switch to Biotrue multi-purpose solution and feel the difference. Biotrue works like your eyes with the same pH and lubricant they have naturally. And it helps keep contacts moist for up to 20 hours1, so wearing lenses is easier on your eyes2. Try Biotrue. Biotrue Multi-purpose solution 4 oz. 6 pack view larger 1.Results of an in vitro study performed to evaluate the rate of release of wetting agents from various silicone hydrogel lens materials over a period of 20 hours. 2.Based on patient satisfaction study. Product Instructions To condition, clean, disinfect, and remove protein daily, complete these simple steps. This daily regimen is recommended by Bausch + Lomb for a healthy and comfortable contact lens wearing experience: Step 1: Place at least 3 drops of Biotrue multi-purpose solution on each side of lens surface and gently rub for 20 seconds. Step 2: Thoroughly rinse each side of the lens for 5 seconds with Biotrue multi-purpose solution. Step 3: Place cleaned contact lenses in the lens case and fill with fresh Biotrue multi-purpose solution. Soak at least 4 hours. Remember to always use fresh solution – discard solution from lens case after each use. Always follow your eye care professional’s instructions. Based upon your own individual tear chemistry and lens-wearing schedule, your eye care professional may recommend additional products or procedures. Storage: You may store your lenses up to a maximum of 30 days in the unopened lens case. If stored longer than 30 days between wear, you need to follow the cleaning and disinfecting steps prior to lens insertion. Store at room temperature. Use before expiration date on printed on the carton and bottle. Discard any remaining solution 90 days after opening. Contents: A sterile, isotonic solution that contains hyaluronan, sulfobetaine, poloxamine, boric acid, sodium borate, edetate disodium and sodium chloride and preserved with a dual disinfection system (polyaminopropyl biguanide 0.00013% and polyquaternium 0.0001%).