There are two main types of airless pumps. One is a plunger type airless pump, and the other is a liner type airless pump. Commonly used is a plug-type airless pump, which works by using a die piston in the bottle to help push the product into the bottle with each click. The advantages of this airless airless pump are aesthetics, but the biggest challenge is the shape limitation and cost than traditional packaging.







Liner airless pumps occupy a small percentage of the market, but are still in use. The principle is that when the product is launched, the internal capsule will shrink and air will not be drawn into the capsule. This type of airless pump is the best choice to protect the oxidizable ingredients in the formulation.



Either type of airless pump needs to be used up within a certain time after opening. Over time, efficacy cannot be guaranteed.



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