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Nanodropper extends your bottle's life by 3x! If you are paying at least $10 on your eye medication, the Nanodropper pays for itself. Discover your potential savings by using our savings calculator.

Size 15 and 14 come from the metric measurement (in millimeters) of your eyedrop bottle's neck, right where the original cap twists on. Our Size 15 (the original Nanodropper size) fits the vast majority of standard eyedrop bottles. We created Size 14 to add coverage for additional 7% of bottles.

The Nanodropper Adaptor will extend the life of your medication bottle by up to 3x! Since Nanodropper is a sterile medical device, it is intended for single-bottle-use. Always install Nanodropper on a new bottle and discard at the end of the bottle life.

The Nanodropper adaptor is a sterile medical device and is not intended to be taken off the bottle once installed. We recommend using one adaptor per medication to prevent risk of contamination, infection, and injury.

Our recommendation is always to follow the instructions included with your medication and to have a conversation with your eye doctor and follow their instructions. For general guidance, most preservative-containing eyedrop bottles are safe to use up to the printed expiration date on the bottle, as long as you follow the manufacturer’s storage guidelines.

The Nanodropper adaptor is a sterile medical device and is not intended to be taken off the bottle once installed. Please use one adaptor per medication bottle and discard at the end of the bottle-life. There are no FDA-approved home sterilization methods for medical devices. Reuse of the Nanodropper may lead to contamination, infection, and/or injury.

The cap and base are #2 HDPE plastics. They can be recycled normally with other clean plastics. #2 plastics currently have the highest rate of recycled plastics, and are not one of the “mixed plastics” that actually end up in landfills. Mixed plastics are labeled #3-7 and currently lack the ability to be recycled into new products at the end of their life.

Our sustainability statement: Nanodropper was developed to reduce waste found in current standard-of-care practices in chronic eye disease management, one drop at a time. We are committed to our goal of minimizing waste at every step of the life cycle, from pharmaceutical manufacturing, to single-plastics use, and CO2 emissions. As we continue to grow, sustainability is at the forefront of everything we do.

If fluid gets trapped between the original bottle tip and the Nanodropper tip, it can cause two types of problems:
1) With certain types of medications this trapped fluid can clog the tip of the Nanodropper and prevent future drops from coming out, or
2) Sometimes this trapped fluid can create a siphon effect where multiple drops will drip out as soon as the bottle is un capped or turned upside down.

Fortunately, we have an easy fix for both problems! Please follow the steps in this video everytime you take a drop to avoid those problems in the future.