The airless pump bottle, occasionally called salon bottle, is a unique and hygienic way to apply skincare. The bottle itself is an 8oz cylinder. It contains the same quantity of product as the 8oz jar. It works by having a base on the bottom, that is pushed up by the pressure when squeezing the pump on the top of the jar. This leaves all the air on the bottom, and the cream inside exposed to the least amount of air. This keeps the cream fresh and uncontaminated until it reaches your skin. Occasionally, on brand new airless pump salon bottles, you may need to pump consistently to get the first application of cream started.