Delivering 3000IU per spray, D3000 Vitamin Oral Spray provides the optimal dosage for adults living in the northern hemisphere in a single daily spray. Formulated to provide optimal nutritional delivery, each spray provides the vitamin D in micro-sized droplets that coat and permeate the soft-tissue of the inner cheek, delivery the essential nutrients into the rich vein system below. This allows the formulation to quickly enter the bloodstream for optimal absorption.