Evening primrose oil capsules are mainly from the seeds of Evening primrose, which are low temperature pressed. It can regulate blood lipids, used for hypercholesterolemia or hypertriglyceridemia, and can prevent atherosclerosis. The mechanism of the drug is that this product is rich in γ-linolenic acid, which has a significant cholesterol-lowering effect, 163 times more potent than linoleic acid, and evening primrose oil can make serum total cholesterol, LDL cholesterol, very low density lipoprotein cholesterol lower, while making the high-density cholesterol level significantly higher.