Tie Guan Yin is cold, sweet, sour and it has the functions of heat-clearing and mind-refreshing. It can be used for mouth and tongue sores, dizziness and drowsiness, memory decline, obesity, short red urine, and other diseases. Tie Guan Yin contains tea polyphenols, alkaloids, vitamins, various amino acids, and trace elements. 

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Modern pharmacology shows that it has effect on Antioxidant, lowering blood pressure, regulating blood sugar, prevention and treatment of tumors, prevention of dental caries and Oral deodorization, promoting blood circulation in the brain and enhancing memory, anti-aging, refreshing and refreshing, lose weight, and sterilization and dysentery.

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铁观音性寒、甘、酸，具有清热醒脑的功效。可用于口舌生疮、头晕嗜睡、记忆力减退、肥胖、小便短赤等症。铁观音含有茶多酚、生物碱、维生素、多种氨基酸和微量元素。

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现代药理表明，具有抗氧化、降血压、调节血糖、防治肿瘤、预防龋齿和口腔除臭、促进脑部血液循环、增强记忆力、抗衰老、提神醒脑等作用。减肥，杀菌止痢。