OILESEN Vitamin D3 500 Oral Spray: this product is intended to provide supplementary vitamin D3 (cholecalcipherol) for children, adolescents, and adults, including 60 years of age and older, as well as individuals who may be house-bound or who may avoid sun exposure. \"Oilesen\" Vitamin D3 500 oral spray: allows spraying Vitamin D3 directly into the mouth (underneath the tongue or on the inner side of the cheek) for fast absorption. It is very convenient as there is no need to take oral spray with food and you can spray it any time of day.