Dropper bottles are small containers designed to dispense liquids in very small, controlled amounts, typically drop by drop. They're commonly used in a variety of industries, including pharmaceuticals, cosmetics, essential oils, laboratory applications, and arts and crafts.
They are made from glass or plastic and typically include a cap with a bulb-operated glass or plastic pipette to draw and dispense the liquid. Their main purpose is to provide accurate dosing of small quantities and are favored for their control and reusability.