Evening Primrose Oil
by 21st Century · softgel capsule · 60 softgels
- On the market (NIH)
- UPC 7 40985 21828 0
- DSLD label 304099
- Serving 1 softgel
- 60 servings
Evening Primrose Oil by 21st Century lists one ingredient: 500 mg of evening primrose seed oil concentrate per serving of 1 softgel. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2024.
What is in Evening Primrose Oil?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Evening Primrose Seed Oil Concentrateas Oenothera biennis Seed Oil | 500 mg |
Source: NIH ODS Dietary Supplement Label Database, label 304099 (entered October 24, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). 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 3 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.
- Evening Primrose Flower 450 mgTerraVita Premium Collection same ingredients
- Evening Primrose Herb 450 mgTerraVita Premium Collection same ingredients
- Evening PrimroseHerbal Terra same ingredients
- Evening PrimroseHawaii Pharm same ingredients
- Evening Primrose FlowerNature's Answer · off the market same ingredients
- Evening Primrose 1,000 mgNature's Answer same ingredients
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: As a herbal supplement, adults take one (1) softgel with any meal, three (3) times daily or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.
- Warnings
- Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
- Stop use and contact a physician if adverse reactions occur.
- Keep out of reach of children.
- Do not use if product appears to be tampered with or seal is broken.
- May contain soy ingredients.
- Allergens and what it does not contain
- No added sugar, salt, yeast, preservatives or artificial flavors.
- Gluten free
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 304099.
What else is on the label?
Other ingredients: Gelatin, Glycerin, Water, Purified.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Guaranteed Quality Laboratory Tested.
How many labels does Evening Primrose Oil have?
3 labels are on file under this name since July 25, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 304099 (current) Entered October 24, 2024 · on the market · 60 softgels · UPC 7 40985 21828 0
- Label 205830 Entered August 23, 2019 · on the market · 60 softgels · UPC 7 40985 21828 0
- Label 11234 Entered July 25, 2012 · off the market June 28, 2019 · 60 softgels · UPC 7 40985 21828 0
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names 21st Century HealthCare, Inc. (manufacturer), Tempe, AZ. All 21st Century products.