If you're dealing with age-related prostate concerns and urinary comfort, this formula delivers 600mg of **Mixed Phytosterols** including 250mg of beta-sitosterol, a plant compound with moderate clinical backing. Multiple studies use beta-sitosterol at 60–130mg daily, so the 250mg dose here gives you meaningful coverage across two caplets.
The mineral profile adds supporting players: **Zinc** at 15mg is right at the clinical threshold for prostate-relevant research, and **Vitamin D3** at 800 IU contributes to your baseline D status. **Boron** at 3mg matches the dose studied for hormonal and bone support. **Selenium** at 70mcg falls short of the 100–200mcg range used in most studies.
The zinc is provided as zinc oxide, which is the least-absorbed supplemental form. For a product built around prostate health where zinc matters, that's a notable compromise in your absorption efficiency.
BioStacks
Ingredients (11)
Silica
100%Dose
20 mg
Target
5–30 mg
Form
—
Molybdenum
100%Dose
75 mcg
Target
45–75 mcg
Form
Standard
Manganese
100%Dose
2 mg
Target
1.8–5 mg
Form
Standard
Vitamin D3
80%Dose
800 IU
Target
1000–5000 IU
Form
Premium
Boron
100%Dose
3 mg
Target
3–6 mg
Form
Standard
Other Ingredients (5)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
ShellacCoating
Natural resin secreted by the lac bug, used as a coating and glazing agent for tablets and pills
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
No evidence a formula this broad works better at any particular hour. 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
Directions: As a dietary supplement take two (2) caplets daily, preferably one (1) caplet in the morning and one (1) caplet in the evening; or as directed by a healthcare provider.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$24.64
Near the median of 292 immune supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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.