At 30mg, this **zinc** hits the level where the immune evidence is strongest — meta-analyses tie it to shorter colds and steadier everyday defense — in a well-absorbed bisglycinate form that's gentle on the stomach. It's a full dose in a single daily capsule, right at the top of the supplemental range.
One thing to plan around: at 30mg you're just under zinc's 40mg daily upper limit, so there's little headroom to stack this with zinc from a multivitamin or another supplement. And taken long-term, zinc at this dose can gradually deplete your copper stores — pairing it with 1–2mg of copper keeps that balance in check for sustained daily use.
BioStacks
Best for
Ingredients (1)
Zinc
100%Dose
30 mg
Target
15–30 mg
Form
Premium
Other Ingredients (3)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
Products that cover similar health dimensions based on their ingredients.
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.