Pharmacy Care Evening Primrose Oil 200 Capsule is rich in a fatty acid called gamma-linolenic acid (GLA), which is an omega-6 fatty acid. Evening primrose oil is available in various forms, including capsules. It is often used to support hormonal balance in women, particularly during the menstrual cycle. The GLA content in evening primrose oil is believed to help regulate hormone levels and may alleviate symptoms of premenstrual syndrome (PMS) such as breast pain, bloating and mood swings. The GLA in the oil may help support the skin's barrier function and promote moisture retention. It is commonly used to address skin conditions such as eczema, psoriasis and acne.