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Evening Primrose oil supplements
Half of the 300 evening primrose oil supplements in the NIH label database that print an amount list 500 mg or less per serving; the middle half list 500 mg to 1,300 mg (DSLD version 9.4.0, January 2026). The 27 products whose only supplement ingredient is evening primrose oil list a median of 1,000 mg.
- Products listing it
- 389300 print an amount; 88 list it inside a blend without an amount
- Median per serving
- 500 mgmiddle half 500 mg to 1,300 mg
How much evening primrose oil do supplements contain?
The median product lists 500 mg per serving. One in ten lists 150 mg or less, one in ten 1,300 mg or more. The amount printed most often is 500 mg (88 products).
Products by amount of evening primrose oil per serving
300 products, log scale; extreme 0.2% at each end left out of the drawing.
| Amount per serving | Products | For example |
|---|---|---|
| 500 mg | 88 | Evening Primrose Oil 500 mg (Vitamin World); Evening Primrose Oil 500 mg (Nature's Bounty); Evening Primrose Oil 500 mg (VitaCeutical Labs) |
| 1,300 mg | 72 | Evening Primrose Oil 1300 mg (Vitamin World); Evening Primrose Oil 1300 mg (Viva Vitamins); Evening Primrose Oil 1,300 mg (VitaCeutical Labs) |
| 1,000 mg | 47 | Evening Primrose Oil 1000 mg (Sundown Naturals); Natural Evening Primrose Oil 500 mg (Windmill); Ultra Preventive V Plus Chel (Douglas Laboratories) |
| 50 mg | 15 | Glucosamine Chondroitin Wtih Tart Cherry (Nature's Answer); MultiNutrient (Bluebonnet Super Earth); MultiNutrient Iron Free (Bluebonnet Super Earth) |
| 1,500 mg | 11 | Evening Primrose Pearls 500 mg (Crystal Star); Evening Primrose Oil 500 mg (Mountain Meadow Herbs); Evening Primrose Oil 500 mcg (New Sun) |
| 300 mg | 10 | Phyto-Estrogen Formula (GNC Women's); Omega 3-6-9 (Indiana Botanic Gardens); Phytoestrogen Formula (GNC Women's) |
| 200 mg | 8 | Feminene Female Support Formula (Market America); Omega Burn (BioChem Sports); Vegepa (Igennus Healthcare Nutrition) |
| 280 mg | 4 | EFA Liquid Natural Orange Flavor (Genestra Brands); EFA Blend For Children (Nature's Way); EFA Blend for Kids (Nature's Way) |
| 800 mg | 4 | Omega Woman with Evening Primrose Oil (Nordic Naturals); Omega 3-6-9 Softgels (1200 mg) (BulkSupplements.com) |
| 2,000 mg | 4 | Evening Primrose Oil (Fairhaven Health); Evening Primrose Oil 2,000 mg (Nature's Truth); Evening Primrose Oil (Approved Science) |
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most evening primrose oil?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- TransCycle FormulaZahler2,500 mg
- Primrose Liquid GoldHealth From The Sun2,300 mg
- Evening Primrose OilDaVinci Laboratories2,046 mg
- Evening Primrose OilFairhaven Health2,000 mg
- Evening Primrose Oil 2,000 mgNature's Truth2,000 mg
- Evening Primrose OilApproved Science2,000 mg
- Evening Primrose Pearls 500 mgCrystal Star1,500 mg
- Evening Primrose Oil 500 mgMountain Meadow Herbs1,500 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2012 list a median of 500 mg; those entered in 2024, 1,000 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2012 | 30 | 500 mg |
| 2017 | 21 | 500 mg |
| 2020 | 27 | 1,000 mg |
| 2021 | 39 | 500 mg |
| 2022 | 20 | 500 mg |
| 2023 | 23 | 1,000 mg |
| 2024 | 24 | 1,000 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing evening primrose oil by DSLD product type
Brands listing it most: Nature's Way (9), Nature's Answer (8), Bluebonnet (7), OL Olympian Labs (6), Wonder Laboratories (6), Good 'N Natural (5), GNC Women's (5), Douglas Laboratories (5), DC (5), BulkSupplements.com (5).
Every product listing evening primrose oil
389 products, A to Z by name (page 7 of 8), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Omega LeanAdvanced Nutrition Systemsin a blend
- Omega Skin & MoodRainbow Light · off the market1,000 mg
- Omega Sport+Florain a blend
- Omega Tru Evening Primrose Oil 104 mgSwanson1,300 mg
- Omega VitalsViSalus · off the market125 mg
- Omega Woman Evening Primrose Oil BlendNordic Naturals · off the market800 mg
- Omega Woman with Evening Primrose OilNordic Naturals800 mg
- Omega-3 Fatty Acids & CLADexatrim Completein a blend
- OmegaflexIgennus Healthcare Nutrition120 mg
- OmegaMAXXKaruna200 mg
- OmegaPlexKaruna200 mg
- OmegaPrimeTriVita350 mg
- OmegaTru Evening Primrose Oil 1,300 mgSwanson EFAs · off the market1,300 mg
- OmegaTru Evening Primrose Oil 500 mgSwanson EFAs · off the market1,000 mg
- Optimal Immune IIGet Healthy Againin a blend
- Optimal PrimroseSeeking Health1,300 mg
- Organic Evening Primrose OilHealth From The Sun1,300 mg
- Organic Evening Primrose Oil 500 mgVitalBulk500 mg
- Organic Evening Primrose Oil 500 mg SoftgelVitalBulk · off the market500 mg
- Ortho Multi Softgels for WomenProtocol For Life Balance500 mg
- Pharmepa MaintainIgennus Healthcare Nutrition717 mg
- Phyto-Estrogen FormulaGNC · off the market300 mg
- Phyto-Estrogen FormulaGNC Women's300 mg
- Phytoestrogen FormulaGNC Women's300 mg
- Plant-Based Omega 3-6-9 1,000 mgLuckyVitamin300 mg
- PMS SupportWomen's Ensemble by MegaFood250 mg
- PMS Women's HealthNutrilite · off the market125 mg
- Prim RoyalDouglas Laboratories500 mg
- Prim Royal-V Standardized Herbal ExtractDouglas Laboratories500 mg
- Primrose Liquid GoldHealth From The Sun2,300 mg
- Primrose OilProgressive Professional from Progressive Laboratories500 mg
- PS IQ Memory With EFA-Rich OilsNatural Factors PS Factor · off the market300 mg
- PS-IQ MemoryNatural Factors PS Factor300 mg
- RadianceEu Naturalin a blend
- Rhythm Chocolate Ginger Snap FlavorThe Functional Chocolate Companyin a blend
- Royal Brittany Evening Primrose OilAmerican Health · off the market500 mg
- Royal Brittany Evening Primrose Oil 500 mgAmerican Health500 mg
- Rx Omega-3 Women's BlendNatural Factors WomenSense · off the market500 mg
- RxOmega-3Natural Factors WS WomenSense500 mg
- Sendara PlusPatient One MediNutritionals · off the market1,000 mg
- Single 1 DailyBluebonnet Super Earth50 mg
- Single 1 Daily Iron FreeBluebonnet Super Earth50 mg
- Single 1 Daily Iron FreeBluebonnet50 mg
- Single 1 Daily with IronBluebonnet50 mg
- Skin Support PackDouglas Laboratories500 mg
- Sport ChocolateGNC Mega Menin a blend
- Sport VanillaGNC Mega Menin a blend
- Standardized Evening Primrose Oil 1000 mgRexall1,000 mg
- Standardized GLA Evening Primrose Oil 1000 mg 90 mg GLA (9%)Good 'N Natural · off the market1,000 mg
- Standardized Phytoestrogen Complex with EFAsSwanson Ultra · off the market300 mg