Evening Primrose Oil
Also known as: EPO, Oenothera biennis, GLA supplement
An oil extracted from the seeds of the evening primrose plant, rich in gamma-linolenic acid (GLA). Traditionally used for breast pain (mastalgia), PMS, and menopausal hot flushes. Evidence for hot flush reduction is modest. Also used for skin health and inflammation.
This page contains self-reported experiences from the Narrated community — not clinical data. Outcomes are subjective. Always consult your GP or specialist before starting, stopping, or changing any intervention.
Total Reports
3
Median Score (Wk 8)
3/10
Would Continue
0%
Avg Duration
9 wk
Most Common Goal
libido
Most Reported Side Effect
Headaches (33%)
Based on self-reported community data. Scores use a 1–10 scale.
Regulatory status does not mean an intervention is safe or unsafe. Laws vary by country — check your local regulations.
Also Used For
Women who reported on Evening Primrose Oil mentioned using it for the following goals. This does not mean it is intended for or achieves any of these outcomes.
Community Experiences
3 reports from women who tried Evening Primrose Oil
I tried evening primrose oil for libido after seeing it mentioned in a health magazine. After 8 weeks I noticed no meaningful change. It may help with other hormonal symptoms but for libido specifically I didn't experience any benefit. I stopped taking it.
Tried evening primrose oil on a friend's recommendation for endo pain. After 8 weeks I'd say there was a very slight improvement in the cramping before my period, but nothing dramatic. I might continue it alongside my other treatments but wouldn't rely on it alone.
A friend recommended evening primrose oil and I gave it a full three months. I genuinely noticed no difference in my hot flashes, sleep or mood. The headaches were a minor nuisance. I think it's one of those supplements that has outlived any evidence behind it for menopause specifically.
Research Context
Research context compiled from published sources
How does Evening Primrose Oil work?
GLA is a precursor to anti-inflammatory prostaglandins (PGE1). Modulates inflammatory pathways and may influence prostaglandin balance in ways that affect cyclical breast pain and skin barrier function. Proposed effects on vasomotor symptoms may relate to prostaglandin-mediated thermoregulation.
Research Depth
Moderate Research
Some human clinical trials exist, but the evidence base is still developing.
Long-Term Evidence
Limited
Only short-term data available. Long-term effects are not well understood.
Known Interactions
Reported Contraindicated Populations
Published Dose Ranges
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
Related Interventions
Other Supplement tracked on Narrated.
Data last updated: March 19, 2026