Solaray evening primrose oil is obtained from the seed of the beautiful evening primrose plant and is one of the world's most plentiful sources of GLA (gamma linolenic acid) and LA (linoleic acid). Solaray evening primrose oil is squeezed from the seed by a process known as cold pressing. No solvents have been used. A natural product typically supplying the following fatty acids: 50 mg gamma linolenic acid (GLA) and 370 mg linoleic acid (LA). Perlecap Size 10 Oval