Evening Primrose Oil 500 mg

by Thompson · softgel capsule · 30 softgels

  • On the market (NIH)
  • DSLD label 36553
  • Serving 1 softgel

Evening Primrose Oil 500 mg by Thompson lists 3 ingredients, 1 with an amount per serving of 1 softgel, such as 500 mg of evening primrose oil; 2 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on August 26, 2014.

What is in Evening Primrose Oil 500 mg?

Each row as the label prints it, per serving of 1 softgel. 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).

Evening Primrose Oil 500 mg: Supplement Facts rows against the market (DSLD label 36553, January 2026 release)
IngredientAmount% DVAmong products listing it
Evening Primrose OilEvening Primrose Oil Genus: Oenothera Species: biennis SubSpecies: L. Note: supplying500 mgEvening Primrose oil in Evening Primrose Oil 500 mg 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: 3,000 mg.

Gamma-Linolenic Acid50 mg Gamma Linolenic Acid (Alt. Name: GLA)no amount given
Linoleic Acid370 mg Linoleic Acid (Alt. Name: LA)no amount given

Source: NIH ODS Dietary Supplement Label Database, label 36553 (entered August 26, 2014), 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; 2 ingredients sit inside a blend, so their amounts cannot be compared.

The NIH database records 6 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?

3 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
Directions: Use only as directed. Take one softgel up to six times daily with a meal or glass of water.
Warnings
WARNING: Do not use if safety seal is broken or missing.
Keep out of reach of children.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 36553.

What else is on the label?

Other ingredients: Gelatin softgel.

How many labels does Evening Primrose Oil 500 mg have?

One label is on file, entered on August 26, 2014.

  1. Label 36553 (current) Entered August 26, 2014 · on the market · 30 softgels

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

Who makes it?

The label names Nutraceutical Corp. (manufacturer). All Thompson products.

Where next?