BioStacks
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Ingredients (4)
Zinc
100%Dose
30 mg
Target
15–30 mg
Form
Standard
Beta-Glucan
100%Dose
420 mg
Target
250–500 mg
Form
—
Vitamin D2
100%Dose
4000 IU
Target
1000–5000 IU
Form
Budget
Vitamin C
100%Dose
900 mg
Target
250–2000 mg
Form
Not listed
Other Ingredients (1)
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Take it anytime
Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
Space it a couple of hours from Iron and Calcium
On the label
For daily maintenance, take 1 capsule. If you need extra support or feel your system is compromised, take 3 capsules every day for 10 days.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$38.00
Pricier than 83% of 544 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.