BioStacks
Best for
Ingredients (4)
Vitamin C
100%Dose
1000 mg
Target
250–2000 mg
Form
Budget
Bioflavonoid Complex Bioflavonoids 300 mg; Hesperidin 100 mg
100%Dose
500 mg
Target
250–1000 mg
Form
—
Acerola
50%Dose
50 mg
Target
100–500 mg
Form
—
Rose Hips
2%Dose
50 mg
Target
2500–5000 mg
Form
—
Other Ingredients (2)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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
Two capsules, once daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$37.36
Near the median of 292 immune supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.