BioStacks
Pure Encapsulations

E.P.O.

1 Softgel · 250 servings · $0.28/serving

iHerbAmazon
10 / 100Very Poor

Score Breakdown

Formulation
10
Safety
100
Final score
10/100

Ingredients (2)

1 scored · 1 not scored

Evening Primrose Oil500 mg

50% of effective dose

9% Gamma-Linolenic Acid

Amount not found

Other Ingredients

Fillers, coatings, and additives

1Safe

GelatinCapsule

Safe

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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.