BioStacks
Best for
Ingredients (5)
Potassium
100%Dose
365 mg
Target
99–500 mg
Form
Budget
Vitamin C
100%Dose
4000 mg
Target
250–2000 mg
Form
Budget
Magnesium
55%Dose
55 mg
Target
100–400 mg
Form
Budget
Zinc
13%Dose
2 mg
Target
15–30 mg
Form
Standard
Calcium
145 mgTrace amount — not scored
Other Ingredients
No other ingredients listed
How to Take It
Best taken in the evening
The Magnesium in it is what pulls this toward the evening. 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
Mix one (1) teaspoon of BUFFERED VITAMIN C POWDER into a glass of water. Wait for the fizz to stop before consuming. The minerals buffer out the normally acidic vitamin C to make a pleasant tasting drink.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$21.00
Pricier than 75% 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.