BioStacks
Best for
Ingredients (6)
Magnesium
100%Dose
450 mg
Target
100–400 mg
Form
Not listed
Calcium
100%Dose
450 mg
Target
200–600 mg
Form
Not listed
Vitamin D3
8%Dose
80 IU
Target
1000–5000 IU
Form
Premium
Betaine Hydrochloride
12%Dose
75 mg
Target
650–2500 mg
Form
Premium
Magnesium Oxide
Amount not found
Other Ingredients (6)
ShellacCoating
Natural resin secreted by the lac bug, used as a coating and glazing agent for tablets and pills
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Vegetable StearateLubricant
A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant
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
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 3 tablets daily with a meal, or as directed by your health care practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$26.30
Near the median 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.