No, booster pads and liners are made differently. Booster pads do not contain any moisture barrier where a liner does. A moisture barrier will prevent any fluid from passing through the product. A booster pad has a flow-through design that allows the pad to fill to capacity first and then pass additional fluid to the host (primary) garment. Booster pads are placed inside any disposable undergarment with a moisture proof backing. Liners are worn in regular underwear.