BioStacks
Best for
Ingredients (8)
Zinc
67%Dose
10 mg
Target
15–30 mg
Form
Standard
Vitamin C
40%Dose
100 mg
Target
250–2000 mg
Form
Budget
Vitamin D3
10%Dose
100 IU
Target
1000–5000 IU
Form
Premium
Echinacea (5:1) extract
3%Dose
8 mg
Target
300–1500 mg
Form
—
Chamomile (4:1) extract
0%Dose
1 mg
Target
220–1500 mg
Form
—
Other Ingredients
No other ingredients listed
How to Take It
Best taken in the evening
Calming herb — used in the evening, most often as a pre-sleep tea or extract. 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
Adults 19 years and older: Take at first sign of cold, flu and dry or sore throat, to a maximum of 5 lozenges daily. Dissolve lozenges slowly in the mouth, after a meal. Take a few hours before or after takingother medications. Do not use if blister pack is broken
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
C$11.99≈ $8.75
Cheaper than 86% of 220 zinc 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.