Better You DLux Vitamin D Oral Spray (15 ml) available in 3,000 IU and 1,000 IU (below), delivers vitamin D in micro-sized droplets that coat and permeate the soft tissue of the inner cheek. The oral spray allows the formulation to quickly enter the bloodstream for optimal absorption.✔ D3000 - delivers 3,000 IU per spray✔ D1000 - delivers 1,000 IU per sprayDLux 3000 provides the optimal dosage for adults living in the northern hemisphere in a single daily spray. DLux Vitamin D Oral Spray is specially formulated to deliver vitamin D through the soft tissue of the mouth for optimal absorption.Vitamin D helps in the development and maintenance of bones and teeth as well as supporting a healthy immune system.