**Vitamin D3** at 1,000 IU per serving — the floor of the clinical range, enough to maintain adequate levels if you're not deficient. The liquid format with MCT oil aids absorption since both vitamins are fat-soluble, and the flexible dosing (2 drops up to three times daily) lets you scale to 3,000 IU if your levels need more support.
**Vitamin K2** is dosed at 200 mcg, right at the top of the studied range for directing calcium into bones instead of arteries. The D3 + K2 pairing is well-supported — D3 increases calcium absorption while K2 ensures it goes where you want it. Together they cover bone density, immune function, and cardiovascular protection.
The K2 form here is MK-4, which clears your body in just a few hours compared to roughly four days for MK-7. If you're taking one serving daily, the K2 benefit may not last through the full day — splitting your dose across morning and evening would help.
BioStacks
Other Ingredients (2)
Medium Chain Triglyceride OilCarrier
Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent
Mixed TocopherolsAntioxidant
Natural vitamin E used as preservative
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
Products that cover similar health dimensions based on their ingredients.
Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.