I-Drop Pur Gel is recommended for those with severe chronic dry eye who are looking for the ultimate relief and comfort for their eyes. What are the benefits of using I-Drop Pur Gel? Preservative-Free Immediate and longer-lasting relief Superior moisturizing and lubrication Non-blurring upon application What makes I-Drop Pur Gel unique? The viscoadaptive property of I-Drop Pur Gel contains 0.30% HA (sodium hyaluronate) with added glycerin. This formulation allows the drops to move back and forth across the surface of the eye with every blink, allowing it to stay in the eye for a longer time. It offers a higher hydration capability and stabilises the lipid layer of the tear film, resulting in superior comfort. The sophisticated one-way valve dispenses 1 sterile dosed drop at a time (no wasted product) and eliminates any chance of the product re-entering the bottle. Our anti-bacterial tip ensures safe, sterile delivery of each drop. When the drop is dispersed, there is a distinctive blue tip which facilitates 'aiming'.