You may have encountered this situation: a bottle of serum or face cream you’re using is almost empty, but the pump just won’t dispense any more fluid; or a brand new bottle of lotion simply won’t dispense any liquid.
So, how do you solve this problem when you’re using a airless pump bottle product?
Airless pump bottles have two types of screw caps: snap-on and screw-top. snap-on airless pump bottles cannot be opened from the pump head.
Why shouldn’t you “open” it?
Because the original design purpose of airless pump bottles is to “isolate them from air.”
Traditional pump bottles have a suction tube; each press causes air to flow back into the bottle to balance the pressure. Airless pump bottles, however, do not have a suction tube. Instead, they have a piston at the bottom. When the pump head is pressed, a vacuum is created inside the bottle, causing the piston to rise and pushing the pump upwards.
What are the core design advantages of airless pump bottles?
Prevents oxidation: Isolates the product from air, maximizing the protection of easily oxidized active ingredients inside the bottle.
Reduces contamination: Prevents bacteria from fingers or the air from entering the bottle.
Reduces waste: The piston effectively “scrapes” the product clean, ensuring every last drop is used.
If you forcibly pry or unscrew it, you’re breaking its vacuum seal. Air and bacteria will then get in, accelerating oxidation and contaminating the product.
What if the airless pump bottle can’t be pushed out?
A brand new airless pump bottle or one that suddenly becomes impossible to dispense
This is usually caused by an “air pocket” between the product and the piston. First, tighten the cap, then invert the bottle (pump head down) and tap it firmly on a table or in your palm 5 to 10 times. This allows the product to sink and fill the gap.
Next, turn the bottle upright and quickly and continuously press the pump head 15 to 20 times or more. This action will expel all the air from the pump tube, establishing initial vacuum. Once a vacuum is formed and the product is successfully sucked out, subsequent use will be very smooth.
If method one fails, the piston may be stuck, requiring manual “resetting”:Please check the small hole at the bottom of the bottle. Find a paperclip or toothpick, insert it into the hole, and push the piston inside the bottle upwards while simultaneously pressing the pump head quickly. This action will forcefully expel air and help the product be drawn into the pump tube.
How do you open a refillable airless pump bottle?
To fill the airless pump bottle, first unscrew the pump head counterclockwise and pour in the product. [Crucial] After filling, use a thin stick (or utilize the small hole at the bottom of the bottle) to push the piston back to the very bottom.
Finally, retighten the pump head and then press quickly and continuously to expel all air and establish a vacuum until the product is successfully expelled.
