A product dispenser with a reservoir adapted for a product and a cap. The reservoir has a protrusion and a piston engaging mechanism. The cap has a pipette, a piston configured to move to create a suction to draw the product through a lower end orifice of the pipette, a housing for the piston, a corresponding engaging mechanism, a button configured to dispense the product, and a chamber configured to change its volume depending on the movement of the piston and the movement of the button.