This vitamin D oral spray delivers 3,000 IU (75mcg) per spray — a solid maintenance-to-correction dose that sits comfortably above the 600 IU RDA and well under the 4,000 IU upper limit. **Vitamin D3** (cholecalciferol) is the form that most reliably raises and holds your blood levels, and at 3,000 IU you're squarely in the range clinical practice uses for bone strength, immune function, and dental health.

The spray-into-the-mouth delivery is the product's signature — a genuinely useful option if you struggle to absorb pills or simply dislike swallowing them, though standard D3 softgels absorb fine for most people. Vitamin D is fat-soluble, so taking it with a meal containing some fat helps either way. If you're correcting a known deficiency or live somewhere with little winter sun, this dose is enough to move the needle without pushing toward the upper limit.