Mehron barrier Spray refil, 9oz. Developed as an under base for 3-D Gelatin appliances to increase durability. Mehron's Barrier Spray is a "wonder spray" that also works to insulate sensitive skin from harsh adhesives. Barrier Spray may be misted on top of powder makeup to set and preserve the makeup application. Barrier Spray can be used under makeup to stop sweat or over makeup to set it after applying Color Set Powder. Bottle doesn't come with the spray pump.