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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.

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).

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.

In which products and brands?

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 3 of 8), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Evening Primrose Oil 1,300 mgOL Olympian Labs1,300 mg
• Evening Primrose Oil 1,300 mgNatural Healthy Concepts · off the market1,300 mg
• Evening Primrose Oil 1,300 mgVillage Vitality · off the market1,300 mg
• Evening Primrose Oil 1,300 mgNewtonEverett1,300 mg
• Evening Primrose Oil 1,300 mgAN Amazing Nutrition Amazing Formulas1,300 mg
• Evening Primrose Oil 1,300 mgWoodstock Vitamins1,300 mg
• Evening Primrose Oil 1,300 mgVitamin Discount Center · off the market1,300 mg
• Evening Primrose Oil 1,300 mgHerbal Secrets · off the market1,300 mg
• Evening Primrose Oil 1,300 mgRon Teeguarden Nutraceuticals1,300 mg
• Evening Primrose Oil 1,300 mgWonder Laboratories1,300 mg
• Evening Primrose Oil 1,350 mgSource Naturals1,350 mg
• Evening Primrose Oil 1000 mgSundown Naturals1,000 mg
• Evening Primrose Oil 1000 mgVitamin World1,000 mg
• Evening Primrose Oil 1000 mgRadiance1,000 mg
• Evening Primrose Oil 1000 mgRadiance Platinum1,000 mg
• Evening Primrose Oil 1000 mgPuritan's Pride1,000 mg
• Evening Primrose Oil 1000 mgNature's Bounty1,000 mg
• Evening Primrose Oil 1000 mgNatrol500 mg
• Evening Primrose Oil 1000 mgEsmond Natural1,000 mg
• Evening Primrose Oil 1000 mgDC1,000 mg
• Evening Primrose Oil 1000 mgPatient One MediNutritionals1,000 mg
• Evening Primrose Oil 1000 mgTRUNATURE1,000 mg
• Evening Primrose Oil 1000 mgSwiss BioEnergetics1,000 mg
• Evening Primrose Oil 1000 mgWonder Laboratories1,000 mg
• Evening Primrose Oil 1000 mgup&up1,000 mg
• Evening Primrose Oil 1000 mgMountain Meadow Herbs1,000 mg
• Evening Primrose Oil 1000 mg - GLA 90 mgVital Nutrients1,000 mg
• Evening Primrose Oil 1000 mg - Vegan FormulaNOW1,000 mg
• Evening Primrose Oil 1300 mcgO Orgeuos1,300 mg
• Evening Primrose Oil 1300 mgVitamin World1,300 mg
• Evening Primrose Oil 1300 mgViva Vitamins1,300 mg
• Evening Primrose Oil 1300 mgVitabase1,300 mg
• Evening Primrose Oil 1300 mgLifestyle Fitness & Nutrition1,300 mg
• Evening Primrose Oil 1300 mgNewflower Farmers Markets1,300 mg
• Evening Primrose Oil 1300 mgMartin Avenue Pharmacy1,300 mg
• Evening Primrose Oil 1300 mgPhysioLogics · off the market1,300 mg
• Evening Primrose Oil 1300 mgSolgar · off the market1,300 mg
• Evening Primrose Oil 1300 mgThe Vitamin Shoppe1,300 mg
• Evening Primrose Oil 1300 mgSmoky Mountain Nutrition1,300 mg
• Evening Primrose Oil 1300 mgNutricost1,300 mg
• Evening Primrose Oil 1300 mgMicro Ingredients · off the market1,300 mg
• Evening Primrose Oil 1300 mgViva Naturals1,300 mg
• Evening Primrose Oil 1300 mgNHC Natural Healthy Concepts1,300 mg
• Evening Primrose Oil 1300 mgSMNutrition1,300 mg
• Evening Primrose Oil 1300 mgDC1,300 mg
• Evening Primrose Oil 1300 mgSR Sports Research · off the market1,300 mg
• Evening Primrose Oil 1300 mgPuritan's Pride1,300 mg
• Evening Primrose Oil 1300 mgBluebonnet1,300 mg
• Evening Primrose Oil 1300 mg 117 mg GLA (9%)Good 'N Natural · off the market1,300 mg
• Evening Primrose Oil 1300 mg SoftgelsBulkSupplements.com1,300 mg

Where next?

• Check an amount of evening primrose oil
• Labels above the upper limit
• All ingredients