BioStacks
Best for
Ingredients (6)
Selenium
50%Dose
50 mcg
Target
100–200 mcg
Form
Premium
Zinc
53%Dose
8 mg
Target
15–30 mg
Form
Premium
Saw Palmetto berry extract
100%Dose
300 mg
Target
160–320 mg
Form
Budget
Pygeum bark extract
67%Dose
50 mg
Target
75–200 mg
Form
—
Nettles root extract
40%Dose
120 mg
Target
300–600 mg
Form
Budget
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Take it anytime
Take with food. The gap between an effective dose and too much is narrow — don't stack several selenium sources.
With food
Space it a couple of hours from Iron and Calcium
On the label
1 capsule per day or as recommended by your health care professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$70.00
Pricier than 95% of 292 immune 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. studied 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.