Mascara drying out too quickly

Number one advice: until it's time for new mascara, keep the tube closed tightly! Choose a mascara that has a thin brush, which means that the opening to the tube will be small and less air will get in. When air enters the tube, it dries out the mascara. Avoid pumping the mascara wand too vigorously during use. This allows air to get into the tube. Add one drop of saline solution to the tube of dry mascara if necessary. It´s not a great idea, but in an emergency, you will be able to get more out of the tube by using this trick.