BioStacks
30 / 100Poor
Best for
Score Breakdown
Formulation
35
Safety
87
Final score
30/100
Ingredients (4)
Zinc
67%Dose
10 mg
Target
15–30 mg
Form
Standard
Vitamin C
10%Dose
25 mg
Target
250–2000 mg
Form
Standard
Elderberry Extract 4:1
42%Dose
125 mg
Target
300–600 mg
Form
—
Organic Echinacea Powder
10%Dose
30 mg
Target
300–1500 mg
Form
—
Other Ingredients (6)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Citric AcidAcidulant
Natural acid derived from citrus fruits
Monk Fruit ExtractSweetener
Zero-calorie natural sweetener derived from the monk fruit (Siraitia grosvenorii)
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.