A dry product dosage dispenser has a container with a cavity between top and bottom ends, a cap on the top end, and an internal partition extending between the top and bottom ends of the body, forming two sub-cavities within the body. The internal partition forms a diverging funnel-like structure giving each sub-cavity a wide upper opening on one end and a narrow lower opening on the opposite end to help product freely flow from one end to the other. Product passes from one sub-cavity to the other through an opening in the internal partition. The dispenser is flipped from its upright position to dispense the product passed through the opening. An adjustable volume compartment can be used at the second end of the container to enlarge the volume of the dispenser and provide variable dosages. The internal partition may be removable or separate for use as an insert.