BioStacks
Pure Encapsulations

Poly-Prebiotic

3 Capsules · 40 servings · $0.68/serving

iHerbAmazon
37 / 100Poor

Score Breakdown

Formulation
37
Safety
100
Final score
37/100

Ingredients (2)

PreticX™ xylooligosaccharide

100%

Dose

1400 mg

Target

1000–4000 mg

Form

—

Cranberry Extract (fruit)

45%

Dose

225 mg

Target

500–1500 mg

Form

—

Other Ingredients

No other ingredients listed

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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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