Mar-Vitoil contains pure evening primrose oil extracted from the seeds of Oenothera biennis by cold pressing, providing a minimum content of 10% gamma-linolenic acid and 68% linoleic acid, and natural vitamin E. MARNYS® Mar-Vitoil is the ally for general well-being in contemporary adult women. Gamma-linolenic acid (GLA) is an Omega-6 fatty acid produced by the essential fatty acid linoleic acid. GLA is rapidly incorporated into cell membranes in the form of phospholipids, participating in the formation of prostaglandins and in metabolic pathways. Directions for use: Take 1-2 capsules daily, preferably before meals.