BioStacks
Best for
Ingredients (2)
Vitamin C
40%Dose
100 mg
Target
250–2000 mg
Form
Budget
Black Elder extract
33%Dose
100 mg
Target
300–600 mg
Form
—
Other Ingredients (5)
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.
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.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
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 1 lozenge as needed up to four times daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$9.95
Cheaper than 86% of 68 elderberry 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.