The amount of vitamin D you make from a SOLIUS treatment is going to be a little different for everyone. Since you are making the vitamin D through the skin using the same mechanisms that allow you to naturally make vitamin D in response from sun exposure, we cannot predict a specific IU value. SOLIUS utilizes the body's natural ability to self-regulate vitamin D production.
Vitamin D blood level increase is more pronounced from UVB exposure when starting levels are low. As vitamin D blood level rises, response to additional UVB becomes dampened as the body regulates production. The body’s response to supplements is unregulated, so the resulting increase in vitamin D blood level per unit of intake (IU) is not comparable. With SOLIUS, your body will produce the amount of vitamin D it needs and stop when optimal levels have been reached.