PlainVitamins

E.p.o.

by Pure Encapsulations · softgel capsule · 100 softgel capsules

  • On the market (NIH)
  • UPC 7 66298 01210 0
  • DSLD label 182885
  • Serving 1 softgel capsule
  • 100 servings

E.p.o. by Pure Encapsulations lists one ingredient: 500 mg of evening primrose (oenothera biennis) oil per serving of 1 softgel capsule. Its current label entered the NIH Dietary Supplement Label Database on January 7, 2019.

What is in E.p.o.?

Each row as the label prints it, per serving of 1 softgel capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

E.p.o.: Supplement Facts rows against the market (DSLD label 182885, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories5 Calories
Total Fat0.5 g1%Fat (unspecified) in E.P.O. against 11,965 products0.5 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.0.5 g

86% of 11,965 products listing fat (unspecified) give more (median 1.5 g). Per day at the most servings: 2 g.

Evening Primrose (Oenothera biennis) Oilas Gamma-Linolenic AcidEvening Primrose (Oenothera biennis) Oil (Form: standardized to contain 9% Gamma-Linolenic Acid (Alt. Name: GLA)) PlantPart: seed Genus: Oenothera Species: biennis Note: cold-pressed500 mgEvening Primrose oil in E.P.O. against 300 products500 mg per serving; the middle half of products list 500 mg to 1,300 mg, the median 500 mg.500 mg

50% of 300 products listing evening primrose oil give more (median 500 mg). Per day at the most servings: 2,000 mg.

Source: NIH ODS Dietary Supplement Label Database, label 182885 (entered January 7, 2019), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 4 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommendations: As a dietary supplement, take 1 capsule, 1-4 times daily, with or between meals.
Warnings
Warning: If you are pregnant or lactating, have any health condition or taking any medication, consult your health professional before use.
Keep out of the reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, Non-GMO & Hypoallergenic
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 182885.

What else is on the label?

Other ingredients: Gelatin Capsule.

How many labels does E.p.o. have?

2 labels are on file under this name since October 25, 2018: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 182885 (current) Entered January 7, 2019 · on the market · 100 softgel capsules · UPC 7 66298 01210 0
  2. Label 182887 Entered October 25, 2018 · on the market · 250 softgel capsules · UPC 7 66298 01211 7

DSLD also links this label to: E.P.O. (Evening Primrose Oil) (image difference, same product), E.P.O. (Evening Primrose Oil) (package size difference, same product), E.P.O. (Evening Primrose Oil) (image difference, same product), E.P.O. (Evening Primrose Oil) (package size difference, same product), E.P.O. (Evening Primrose Oil) (package size difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Pure Encapsulations (distributor), Sudbury, MA. All Pure Encapsulations products.

Where next?