ROYAL BRITTANY EVENING PRIMROSE OIL is non-hydrogenated, solvent free, 100% pure, unrefined (because it is naturally pure), cold-pressed and guaranteed by assay for consistency of potency. It comes from the seed oil of a carefully selected and hybridized strain of European Evening Primrose. This strain of ‘wild’ evening primrose took over 15 years to develop to the point where it would deliver the content consistency of GLA (Gamma-linolenic Acid) and LA (Linoleic Acid) found in our Royal Brittany product today. Royal Brittany Evening Primrose Oil, nutritional support for today’s woman. It delivers exceptional support for a woman’s unique chemistry and life cycles. Easy to swallow softgels. Choose from popular 500 mg and 1300 mg potencies.