SYSTANE PRO Multi-Dose Preservative-Free Lubricating Dry Eye Drops is a triple action formula that hydrates, restores and protects dry eyes for long-lasting dry eye relief. Systane Pro Preservative Free contains the active ingredient propylene glycol to lubricate and soothe dry eyes, and is supported by hyaluronate, which is naturally occurring in tears, to provide long lasting hydration. This unique formula enhanced with lipid nanodroplets provides superior tear evaporation protection versus other leading drops. Systane Pro Preservative Free comes in a convenient 10ml multi-dose bottle, perfect for on-the-go use to keep your eyes comfortable and moisturized wherever your day takes you. Systane Pro Preservative Free can be used daily, as needed and for adults. Warnings: for external use only. †In vitro data; versus Blink Triple Care, Ivizia, Refresh Optive Advance, Refresh Optive Mega-3, Systane Hydration and Systane Complete