BioStacks
Best for
Ingredients (6)
Vitamin C
100%Dose
1000 mg
Target
250–2000 mg
Form
Standard
Potassium
100%Dose
103 mg
Target
99–500 mg
Form
Standard
Zinc
53%Dose
8 mg
Target
15–30 mg
Form
Standard
Manganese
56%Dose
1 mg
Target
1.8–5 mg
Form
Standard
Calcium
60 mgTrace amount — not scored
Other Ingredients
No other ingredients listed
How to Take It
Take it anytime
Take it with food — the zinc and potassium in it are what makes this kind of product feel nauseating on an empty stomach.
With food
Space it a couple of hours from Iron and Calcium
On the label
1 heaping 1/4 measuring teaspoon mixed in water or juice as desired, preferably with a meal.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$21.67
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.