Do not use any organic solvent or acid to contact pearls. When there are some problems with its appearance, it is recommended to take it to a professional jewelry store for maintenance. Pearl is an organic gem, its internal structure is layered, and its main component is calcium carbonate, so you must pay attention to maintenance when wearing it, and avoid contact with some chemicals, such as cosmetics, shower gel, including human sweat, etc. , and avoid contact with heat sources. If the pearl is dirty, you can wipe it with flannel or glasses cloth first. If there are foreign objects, you can clean it with pure water or mineral water (you must not use tap water) and then wipe it!