The invention provides a dispensing closure to supply a dose with an inverted dome having a housing, the housing having a septum, a convex dome, and an end plate seal. A main vessel can be attached to the inverted dome dispensing closure, and a user-actuated means for dispensing from the inverted dome dispensing closure into the main vessel is also provided. The invention provides a point of use dispensing device that will supply fresh healthy ingredients that are stored inside the closure.