Oenothera Biennis ya evening primrose ka oil ek plant-based lipid hai jo linoleic aur gamma-linolenic acid (GLA) se bhara hota hai. Yeh skin ko soft banana mein madadgar hota hai aur skin barrier ko strong karta hai. Dry, inflamed ya atopic-prone skin ko soothe karne ke liye study kiya ja raha hai.