AEON PROTECT is a lubricating eye drop which gives long lasting relief from symptoms of dry eyes, suitable for use after eye surgery. AEON PROTECT contains Sodium Hyaluronate, an ingredient naturally found in tears which hydrates the surface of the eye. AEON PROTECT also contains PEG 400 which prolongs the action of Sodium Hyaluronate and lubricates the eyes. AEON PROTECT is preserved with a special preservative system called SCO (Stabilized Complex Oxychloro) that keeps the solution sterile in the bottle. When exposed to light, SCO dissipates into components naturally found in the human tears such as sodium chloride, oxygen and water, making it very well tolerated. Phosphate free.