Evening Primrose Oil: 1.golden yellow 2.content: omega-6 essential fatty acid, gamma linolenic acid(GLA) Evening Primrose ... Oil: 1.golden yellow 2.content: omega-6 essential fatty acid, gamma linolenic acid(GLA)Evening Primrose ... Oil:1.goldon yellow liquid2.content: omega-6 essential fatty acid, gamma linolenic acid(GLA)3.used ...