BioStacks
Best for
Ingredients (5)
Vitamin C
80%Dose
200 mg
Target
250–2000 mg
Form
Budget
Vitamin A
86%Dose
600 mcg RAE
Target
700–1500 mcg
Form
Budget
Zinc
100%Dose
20 mg
Target
15–30 mg
Form
Budget
Copper
100%Dose
1000 mcg
Target
1000–2000 mcg
Form
Budget
Echinacea purpurea Herb Powder
7%Dose
20 mg
Target
300–1500 mg
Form
—
Other Ingredients (7)
FructoseSweetener
Added free fructose is metabolized in the liver and at habitual intake is linked to elevated triglycerides, hepatic fat accumulation, and insulin resistance; an avoidable sugar load with no supplement benefit.
SorbitolSweetener
A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
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.
Citric AcidAcidulant
Natural acid derived from citrus fruits
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.