BioStacks
50 / 100Average
Best for
Score Breakdown
Formulation
50
Safety
100
Final score
50/100
Ingredients (3)
Elderberry Fruit 4:1 Extract
100%Dose
400 mg
Target
300–600 mg
Form
—
Vitamin C
36%Dose
90 mg
Target
250–2000 mg
Form
Budget
Zinc
73%Dose
11 mg
Target
15–30 mg
Form
Budget
Other Ingredients (4)
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
Dicalcium PhosphateBinder
Calcium and phosphorus compound used as binder
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
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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.