Is a natural source of the unsaturated fatty acid, Gamma-Linolenic Acid (GLA).Gamma-Linolenic Acid is a precursor to prostaglandins, action-specific biomolecules that regulate many important functions in cells.Legal Disclaimer Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For centuries, women of all ages have depended on the reliability of Evening primrose Oil. Evening Primrose Oil contains Gamma-Linolenic Acid (GLA), a fatty acid not commonly found in food. Popular with women of all ages, Evening primrose Oil helps provide nutritional support for women with PMS. Evening primrose oil is one of the best products of its kind on the market. The Evening Primrose used is cold pressed and void of Hexane.