Sentinel Evening Primrose Oil 500mg is a dietary supplement containing concentrated evening primrose oil in softgel form. Each softgel provides 500mg of evening primrose oil, which is rich in gamma-linolenic acid (GLA), an essential omega-6 fatty acid. Evening primrose oil is traditionally used to support women's health, particularly for managing premenstrual syndrome (PMS) symptoms. The oil is extracted from the seeds of the evening primrose plant and contains beneficial fatty acids that may help maintain healthy skin, support joint function, and promote hormonal balance. The softgel format provides a convenient way to take the supplement while avoiding the unpleasant taste of liquid oil. The product is packaged in a dark bottle to protect the oil from light degradation and maintain its potency.