Boston Simplus Contact Lens Solution 104 ml Solution - EachBoston Simplus removes dirt and deposits from gas permeable contact lenses and hard contact lenses without a separate daily cleaner. Boston Simplus also removes protein deposits daily from gas permeable contact lenses and hard contact lenses. This dual disinfection system destroys micro organisms. Boston Simplus retains moisture for optimal lens wearing comfort. Boston Simplus provides extra thickness for cushioning and handling. 3 ounce bottle comes