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.
BioStacks
Other Ingredients
No other ingredients listed
How to Take It
Take it anytime
Fat-soluble — take with your largest fat-containing meal. Time of day doesn't matter.
With a meal containing fat
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$22.89
Pricier than 73% of 552 vitamin D supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.