It is produced by cold-pressing the seeds of the evening primrose plant. It is rich in an essential and polyunsaturated fatty acid called GLA (gamma-linolenic acid). The product contains an effective dose of 1,300 mg in one capsule. It comes in a glass jar that protects against oxidation of the fatty acids due to existing environmental conditions of light, moisture, and heat. No sugar, no preservatives, no food coloring, no salt, It does not contain yeast, wheat, soy, milk, its products, sweeteners, artificial flavors, or colors. Compliance with standards: FDA, GMP, HACCP. Instructions for use: One capsule a day with a meal. 30 capsules