Product Description Delta Plus Disinfecting Soaking and Wetting Solution by CooperVision is a gas permeable contact lens solution for conditioning your lenses. The highly effective disinfectant contains poloxamer which lubricates your contact lenses by forming a coating around the lens surface for a cushioning effect. This reduces lens lid interactions and increases surface wettability for a more comfortable lens wearing experience. For optimal results, use Delta Plus Disinfecting Soaking and Wetting Solution with Delta Preservative Free Daily Cleaner. Once opened, Delta Plus can be used for up to 3 months. Need more optical advice help? Ask our optical experts