Evening primrose oil contains 8% to 10% of γ-GLA and other Omega 6 essential fatty acids, which is conducive to the balance of endocrine. First produced in the U.K., it is used for skin care products. Presently, it is manufactured by large-scale enterprises as health products and cosmetics in China.
According to researches, evening primrose oil is effective in antithrombus, reducing blood fat and sugar as well as anti-inflammation and antioxidation. Meanwhile, it is widely used in the treatment of diabetes, hyperlipemia, atherosis and coronary heart diseases. Its major raw materials are mature seeds of evening primrose native to temperate regions of America.
In recent years, Chinese enterprises planted evening primrose by large area in Jilin, Liaoning and Inner Mongolia to meet the demand at home and abroad, and evening primrose is successfully cultivated with high output volume and oil content. In China, major manufacturers of evening primrose oil include Weihai Yatai Pharmaceutical Co., Ltd., Shenyang Ecology Institute Science and Technology Development Co., Ltd. and Panjin Jiangyuan Biological Product Co., Ltd. Major manufacturers of evening primrose oil capsules include Wuhan No.4 Pharmaceutical Plants, Jiangxi Tianhai Pharmaceutical Co., Ltd., Dalian Orson Pharmaceutical Plant and Tianjin No.2 Central Pharmaceutical Plant.