An application device for a liquid product, contained in a reservoir bottle having a lid for closing the opening of the bottle, through which at least one capillary migration channel for the liquid product passes towards a wetable surface on contact therewith is provided. Several similar capillary channels are preferably provided, which can alternatively function as openings for the entry of air through the lid. One of the ends of each channel opens outside the lid. The other end opens in a collector tube for the liquid product, contained in the bottle. The collector tube is embodied to hold a fixed amount of liquid product against gravity by capillary action, until the above is drawn off by capillary migration through the lid channels.