BioStacks
Best for
Ingredients (3)
Magnesium
100%Dose
144 mg
Target
100–400 mg
Form
Premium
Vitamin D3
40%Dose
400 IU
Target
1000–5000 IU
Form
Premium
Vitamin C
24%Dose
60 mg
Target
250–2000 mg
Form
Budget
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Calcium LaurateEmulsifier
Calcium salt of lauric acid used as a lubricant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
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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.