BioStacks
GNC

Grape Seed Extract Extra Strength 500 mg

1 Capsule · 60 servings · $0.75/serving

63 / 100Good

Score Breakdown

Formulation
63
Safety
100
Final score
63/100

Ingredients (2)

Grape seed extract

100%

Dose

500 mg

Target

150–600 mg

Form

Polyphenols

100%

Dose

430 mg

Target

100–1000 mg

Form

Other Ingredients (2)

Microcrystalline CelluloseBinder

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

HypromelloseCapsule

Plant-derived capsule material from cellulose

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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.