Evening primrose oil (GLA)
Oil cold-pressed from Oenothera biennis seeds, rich in GLA (gamma-linolenic acid), precursor of series 1 prostaglandins with anti-inflammatory effects. Mainly used for mastalgia and skin symptoms. Efficacy on hot flashes is less documented than marketing often suggests.
Never use a dietary supplement without the advice of a healthcare professional. Overdoses as well as deficiencies are not without risk.