BioStacks
Best for
Ingredients (6)
Vitamin D3
100%Dose
1000 IU
Target
1000–5000 IU
Form
Premium
Calcium
100%Dose
1000 mg
Target
200–600 mg
Form
Standard
Boron
100%Dose
3 mg
Target
3–6 mg
Form
Premium
non-GMO Soy Isoflavone extract
100%Dose
40 mg
Target
40–100 mg
Form
—
Magnesium
100%Dose
400 mg
Target
100–400 mg
Form
Budget
Other Ingredients (3)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Best taken in the evening
The Magnesium in it is what pulls this toward the evening. Take it with a meal containing fat — the vitamin D in it absorbs 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 and Zinc
On the label
As a dietary supplement, take four capsules once daily, preferably with a meal or as directed by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$43.60
Pricier than 88% of 574 magnesium 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.