Evening primrose oil

Evening primrose oil contains the omega-6 fat GLA.

By the Supplements UK editorial team. Last checked 9 October 2026. General information, not medical advice.

Short answer Evening primrose oil contains the omega-6 fat GLA. There is not enough evidence that it helps eczema, premenstrual symptoms or hot flushes.

Cautions

It may increase the risk of bleeding with blood thinners, and should be discussed with a doctor if you have epilepsy.

Our view

Low risk for most people, and little reason to expect a benefit.

Keep exploring

Questions people ask

What should I know about evening primrose oil?

Evening primrose oil contains the omega-6 fat GLA.

Can I take this with medication?

Ask a pharmacist or GP first; some supplements interact with medicines.

Do supplements replace a balanced diet?

No. They are meant to add to a varied diet, not stand in for one.

Sources

Checked 9 October 2026.