BioStacks
Best for
Ingredients (6)
Vitamin C
40%Dose
100 mg
Target
250–2000 mg
Form
Standard
Vitamin C
35%Dose
87.5 mg
Target
250–2000 mg
Form
Budget
Vitamin C
100%Dose
250 mg
Target
250–2000 mg
Form
Not listed
Vitamin C
25%Dose
62.5 mg
Target
250–2000 mg
Form
Budget
Zinc
20%Dose
3 mg
Target
15–30 mg
Form
Standard
Other Ingredients
No other ingredients listed
How to Take It
Take it anytime
Take it with food — the zinc in it is 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
Child Dosage 2-8 years: Chew one tablet daily during or immediately after a meal 9-12 years: Chew two tablets daily during or immediately after a meal Or as directed by a health care professional. Do not swallow whole
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.