Single-use vial of Blink Tears Preservative Free lies on a counter next to its carton

What Makes Blink® Boost Unique?

It’s enhanced with hyaluronan, a moisturizer found naturally in tears, an electrolyte, and an antioxidant to provide dry eyes with instant comfort and extra-hydrating relief. The preservative-free, pH balanced formula matches healthy tears to make every drop comfortable to apply.