Information Reviews Ask Dr. Dan Product Description Progressive Labs Primrose Oil is a rich source of the Omega 6 essential fatty acids Linoleic Acid (LA) and its derivative Gamma Linolenic Acid (GLA). Recommended Use: Take 1 softgel capsule 3 times daily, or as directed by a healthcare professional. Label Information Progressive Labs Primrose Oil Facts: 1 capsule contains: Evening Primrose Oil 500mg Linoleic Acid 365mg (from primrose oil) Gamma Linolenic Acid 45mg (from primrose oil) Other Ingredients: Gelatin, glycerin, water.