Lab bottles are containers used to store, hold, and mix liquids and other substances in a wide variety of industries including chemistry and biology, and in pharmaceutical and scientific testing. Lab bottles have a more pronounced neck and shoulder than jars, which often have the same size mouth opening as their interior wall dimension. A combination of characteristics, such as bottle type, material, shape, and capacity, along with application, give each bottle its performance ability.

Lab bottles are manufactured to meet the demands of a particular application, such as storage, dispensing, mixing, weighing, and in centrifuge operations. Wash bottles, which commonly come with an attached straw component and squeezable body, are used to wash labware. Media bottles, also known as storage bottles, hold and store suspension liquids or gels. Dropping bottles dispense liquids in a unit of one drop in a dropping motion.

Glass lab bottles are used for chemical and thermal expansion resistance, transparency, and adaptability in a wide array of lab applications. They are frequently made of borosilicate or soda-lime glass. Amber-colored tinted glass provides ultraviolet (UV) resistance. Plastic lab bottles resist cracking and act as a barrier to gases, vapors, and moisture. They come in high-density polyethylene (HDPE), low-density polyethylene (LDPE), and other materials.

Lab bottles come in many shapes, each intended for specific applications. For example, Atlantic City (AC) round bottles commonly have a wide mouth and are used for working with dry and viscous samples. Boston round bottles are for pouring, and for solvent, chemical, and sample storage. French square bottles help provide efficient storage solutions in laboratory settings. Cylindrical bottles are required for roller applications.

The capacity of a lab bottle refers to the amount of liquid or substance that a bottle can hold. Capacity is most commonly measured in metric units, such as milliliters (mL) and liters (l), and sometimes in ounces (oz).