**Zinc** at 50mg per capsule in the picolinate form — one of the best-absorbed forms available. That dose sits well above the 15–30mg range used in most clinical research for immune support, skin healing, and hormonal health. You're getting a genuinely effective amount of zinc in a single capsule.
The picolinate form is a premium choice for absorption, so your body is actually using what you're taking. Zinc has strong clinical evidence across immune defense, wound repair, and even mood support, and at this dose you're fully covered for those benefits.
One important caveat: 50mg exceeds the tolerable upper limit of 40mg per day. Long-term daily use at this dose can deplete your copper stores, which creates its own set of problems. If you plan to take this regularly, pairing it with 1–2mg of copper is worth considering — or you could take it every other day to stay within safer long-term ranges.
BioStacks
Best for
Ingredients (1)
Zinc
100%Dose
50 mg
Target
15–30 mg
Form
Premium
Other Ingredients (3)
Rice FlourFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.
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
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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.