Any of several aromatic resins, such as balsam of Peru and Tolu balsam, that contain considerable amounts of benzoic acid, cinnamic acid, or both, or their esters.
香脂一种芳香脂类树脂，如秘鲁香脂和塔鲁香脂，含有大量的苯甲酸、。
2
It is concluded that fragrance contact allergy accounted for great majority of patients reacting to cosmetics and fragrance mix was superior to Balsam of Peru.