Noun
evening primrose oil (uncountable)
Oil, extracted from the seeds of the evening primrose, used as a complementary medicine (for example, to relieve premenstrual stress).
Haven combines 300mg of CBD Isolate with rose water, which can help with fatigue and anxiety, Evening primrose oil, known to help combat symptoms of pre-menstrual syndrome, and MCT Chocolate Mocha, which provides mental and physical stimulation. Source: Internet