Restorative Formula for Moderate to Severe Dry Eyes SYSTANE® BALANCE Lubricant Eye Drops help support and restore your eyes’ delicate lipid layer by replenishing essential moisture to your eyes. This clinical-strength intensive therapy provides lasting relief from moderate to severe symptoms of dry eye. Available in 10 mL bottles for home or on the go. SHAKE WELL BEFORE USE. Shelf-life: 3 months upon opening Maximum of 4 bottles only per order. Thank you. Strictly No Return No exchange.