BioStacks
Best for
Ingredients (4)
Vitamin D3
100%Dose
1000 IU
Target
1000–5000 IU
Form
Premium
Calcium
100%Dose
1200 mg
Target
200–600 mg
Form
Standard
Magnesium
80%Dose
80 mg
Target
100–400 mg
Form
Not listed
Magnesium Oxide
80%Dose
80 mg
Target
100–400 mg
Form
Budget
Other Ingredients (5)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Polyethylene Glycol (Coating)Coating
A polyether polymer used as a tablet coating and plasticizer
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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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.