走珠式設計,方便易用
讀書前同考試前, 塗一點身上可以更易入腦同得到更佳成績
1/3 fl. oz. (9.6ml) Roll-On Student Oil Pheromone Perfume with Amulets. Pheromones are secreted or excreted from an individual and can trigger a social response. Apply Student Pheromone Oil before studying or taking a test. The scent will help you concentrate and bring luck to your studies.