EVENING PRIMROSE It is a wildflower that grows throughout the U.S.; the oil is found in the plant's seeds and is high in the essential fatty acid gamma-linolenic acid (GLA). It has many uses: Acne, Aging, Alcoholism, Alzheimer's disease, Chronic Pain, Diabetes, Eczema, Erectile Dysfunction, Infertility, Lupus, Multiple Sclerosis, Nail Problems, Peri-menopause, Psoriasis, Rheumatoid Arthritis. Dosage varies...on the average 1000 mgs 2 x daily