contains 117mg of fatty acid gla each capsule contains cold pressed oils sugar salt and starch free evening primrose oil epo is the oil extracted from the seeds of the evening primrose plant oenothera biennis the seeds are mechanically pressed to produce the plant oil which is a rich source of omega 6 essential fatty acids these fatty acids are called gamma linolenic acid gla and linoleic acid la evening primrose oil has been used for generations gla is not naturally p