BioStacks
Best for
Ingredients (3)
Vitamin C
100%Dose
1000 mg
Target
250–2000 mg
Form
Standard
Magnesium Ascorbate
28%Dose
69 mg
Target
250–2000 mg
Form
Standard
Citrus Bioflavonoid Complex
40%Dose
100 mg
Target
250–1000 mg
Form
—
Other Ingredients
No other ingredients listed
How to Take It
Take it anytime
Water-soluble — timing doesn't matter. Split doses above ~500 mg if you want to absorb more of it.
With or without food
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$17.92
Near the median 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.