BioStacks
NutriBiotic

DefensePlus

1 Tablet · 90 servings · $0.25/serving

iHerbAmazon

Best for

Immune

Ingredients (11)

Grapefruit Seed Extract

100%

Dose

250 mg

Target

100–500 mg

Form

—

Vitamin C

50%

Dose

125 mg

Target

250–2000 mg

Form

Not listed

Zinc

33%

Dose

5 mg

Target

15–30 mg

Form

Standard

Astragalus

50%

Dose

100 mg

Target

200–500 mg

Form

—

Yarrow extract

50%

Dose

50 mg

Target

100–1000 mg

Form

—

Other Ingredients (7)

Coating (unspecified)Coating

Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer

DextroseSweetener

A simple glucose sugar used as a bulking agent, sweetener, and tablet diluent

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

Dicalcium PhosphateBinder

Calcium and phosphorus compound used as binder

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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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