BioStacks
21st Century

Saw Palmetto 450 mg

1 Capsule × 2/day · 200 servings

iHerbAmazon

Best for

Immune

Ingredients (2)

Zinc

100%

Dose/day

30 mg

Target

15–30 mg

Form

Premium

Saw Palmetto

100%

Dose/day

900 mg

Target

160–320 mg

Form

Not listed

Other Ingredients (3)

Rice ExtractFiller

Rice-based ingredients carry risk of inorganic arsenic contamination. Vague labeling — 'rice extract' does not specify what is extracted or standardized. Used as a cheap filler with no supplemental benefit.

Rice HullsAnti-caking

Ground outer husk of rice grains used as a plant-based flow and anti-caking agent

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.

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