BioStacks
Best for
Ingredients (12)
Vitamin D-3
100%Dose
2000 IU
Target
1000–5000 IU
Form
Premium
Vitamin K-2
100%Dose
100 mcg
Target
90–200 mcg
Form
Premium
Microcrystalline Hydroxyapatite
100%Dose
600 mg
Target
200–600 mg
Form
Standard
Magnesium
100%Dose
420 mg
Target
100–400 mg
Form
Budget
Boron
100%Dose
3 mg
Target
3–6 mg
Form
Standard
Other Ingredients (5)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamins D and K in it absorb poorly without one.
With a meal containing fat
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron
On the label
As a nutritional supplement for adults, 4 tablets daily with food or as directed by your Healthcare Professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$49.00
Pricier than 92% of 544 vitamin C supplements
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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.