BioStacks
Best for
Ingredients (2)
Vitamin C
40%Dose
100 mg
Target
250–2000 mg
Form
Budget
Zinc
20%Dose
3 mg
Target
15–30 mg
Form
Standard
Other Ingredients (8)
Artificial FlavorsFlavor
Composition is proprietary and not disclosed on the label, so allergens or solvents cannot be verified. Naturally flavored alternatives are more transparent.
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
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.
Natural Color (unspecified)Colorant
Umbrella declaration for a colorant from a natural source (fruit, vegetable, or plant extract) that the label does not name specifically
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.
Calcium StearateLubricant
Calcium salt of stearic acid used as a lubricant and anti-sticking agent
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Citric AcidAcidulant
Natural acid derived from citrus fruits
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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.