hydraSense Ultra Eye gel drops provide immediate comfort and extended protection for dry eyes. Contains a naturally sourced lubricant sodium hyaluronate which is clinically proven to hydrate, lubricate and protect your eyes. Preservative-free and long-lasting eye gel drops that come in a multi-dose bottle with an innovative built-in filter. Phosphate-free, preservative-free. Suitable for use with all types of contact lenses. Can be used for up to 12 months after opening.