Aeon Protect has been formulated to provide relief for anyone with mild to moderate dry eye. Protect contains sodium hyaluronate 0.3% with PEG 400, which provides long-lasting lubrication and relief from dry eye. It is phosphate free and contains SCO, a second-generation preservative that dissipates into components naturally found in tears when exposed to light, meaning that it is preservative-free on the eye. The SCO technology therefore does not cause damage to the eye surface like first generation preservative eye drops.