BioStacks
Best for
Ingredients (4)
Echinacea Extract
100%Dose
400 mg
Target
300–1500 mg
Form
—
Elderberry Extract
67%Dose
200 mg
Target
300–600 mg
Form
—
Vitamin C
28%Dose
70 mg
Target
250–2000 mg
Form
Budget
Bee Propolis Extract
20%Dose
100 mg
Target
500–1000 mg
Form
—
Other Ingredients (8)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Glucose SyrupSweetener
High glycemic load; source typically corn (generally gluten-free)
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.
Black CarrotColorant
Natural colorant derived from anthocyanin-rich black carrots, used to provide purple/red color in gummies and chewables
Citric AcidAcidulant
Natural acid derived from citrus fruits
PectinGelling Agent
Plant polysaccharide from citrus peels or apple pomace used to gel pectin-based gummies
Sodium CitrateBuffer
Sodium salt of citric acid used for pH control, tartness, and chelation in gummies
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
How to Take It
Take it anytime
Plain ascorbic acid is acidic — high doses can bite on an empty stomach. Take it with food if that happens, and split doses above ~500 mg.
With or without food
On the label
Take 2 gummies daily, preferably with food. Take this year round or seasonally when you need an immune system boost!
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$14.95
Cheaper than 70% of 502 vitamin C supplements
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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.