Sports Research Evening Primrose Supplement from Cold Pressed Oil - Softgels for Women’s Health & Skin Health - Gluten Free & Non-GMO GLA - High Potency 1300mg, 30 Count

Clinical trials typically use 2-6 g daily (providing 160-480 mg GLA). Sports Research Evening Primrose Oil 1300mg delivers 1300mg EPO per softgel; 130mg GLA, which we classify as Partial relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Softgel vs alternatives), dose adequacy, and third-party testing.

Yes — Yes — Non-GMO tested, third-party quality tested. Third-party testing verifies ingredient identity and label accuracy.

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Evening primrose oil GLA can mildly inhibit platelet aggregation and may enhance the effects of blood thinners like warfarin. It may also lower the seizure threshold in individuals taking phenothiazine medications. Consult your physician if you are on anticoagulants, anticonvulsants, or planning surgery within 2 weeks.

EPO at 1300mg daily is well-tolerated for long-term use. Occasional mild GI symptoms (nausea, loose stools) may occur at higher doses. No serious adverse effects have been reported with long-term EPO supplementation at standard doses. Cold-pressed quality in this formula minimizes rancidity-related GI irritation.

Taking EPO with food minimizes any mild GI sensitivity. Higher doses (multiple softgels) are more commonly associated with loose stools. The cold-pressed quality oil in this formula is less likely to cause GI irritation than lower-quality oxidized EPO. Most users tolerate one softgel daily without issues.

EPO pairs well with omega-3 fish oil for comprehensive fatty acid coverage, vitamin E for antioxidant protection of GLA, and magnesium for hormonal balance. Avoid combining with other GLA sources (borage, black currant) without tracking total GLA intake. Can be combined with vitamins and minerals without concern.

Take one softgel daily with a meal for best tolerance and absorption. Discontinue 2 weeks before surgery due to mild antiplatelet effects. Not recommended in high doses during pregnancy without medical guidance. Refrigerate after opening to maintain oil freshness.

GLA-based hormonal balance benefits for PMS and menopausal symptoms typically require 2–3 menstrual cycles (2–3 months) of consistent daily use to assess. Skin hydration improvements from GLA are often reported within 4–8 weeks. Anti-inflammatory effects build gradually over the same timeframe.