Dropper bottles are used in laboratories, pharmaceuticals, and cosmetics packaging lines. When the liquid chemical is used in a small amount at a time, or when it is very dangerous, it is often used to contain the solution in dropper bottles. Usually, liquid acid-base indicators are used in dropper bottles. One feature of them is they can accurately measure the amount of each drop of the product, which is calibrated on the dropper bottle so that consumers should grasp the amount of the products that will be of great help. We supply high-end glass dropper bottles from 1ml to 200ml in various colors and styles.