Multi-Purpose Contact Lens Solution is a natural, isotonic contact solution for cleaning, rinsing, disinfecting, removing protein and storing soft (hydrophilic) contact lenses. Different from the average chemical solution, Clear Conscience is free of the scary chemicals thimerosal and chlorhexidine and is sterilized by filtration, not irradiation, so you can feel easy about what you're putting in your eyes. Cruelty-free and manufactured without animal testing. How's that for a clear conscience?