Evening primrose oil is rich in omega-6 fatty acids, including gamma linolenic acid (GLA), which has anti-inflammatory properties and may help with conditions such as arthritis, eczema and hypertension. Evening primrose oil is also believed to help ease many symptoms familiar to women such as pre-menstrual problems and those associated with menopause. Packaged in glass bottle to protect the contents from heat, light, oxidation and moisture.