Fish oil supplementation versus evening primrose oil supplementation Trial B compared fish oil against evening primrose oil supplementation Trial B compared fish oil against evening primrose oil in 29 patients.
Cod liver oil, evening primrose oil or starflower oil are also anti-inflammatory.
According to the National Center for Complementary and Alternative Medicine, there is not enough scientific evidence to support use of evening primrose oil for diseases other than eczema, rheumatoid arthritis and breast pain.
Skin disorders such as eczema, acne, rosacea and psoriasis are often treated with evening primrose oil.
It is believed the high GLA content is what gives the evening primrose oil its unique healing properties.