You may feel the need to rewet your contact lenses before insertion and lubricate them during wear. Blink Contacts® Lubricating Eye Drops moisturizes dry contact lenses by working with the eye’s natural tears to help keep them feeling fresh and provides silky-smooth comfort for contact lens wearers. It also becomes preservative-free in the eye; the preservative breaks down into natural tear components (water and sodium chloride) when exposed to light. Safe for daily use with soft & RGP lenses.