Bo He (Menthae Haplocalycis Herba), commonly known as Field Mint, is a classical herb in Traditional Chinese Medicine known for its pungent, cooling nature and its actions on the Lung, Liver, and Gallbladder meridians. Widely used in Wind-Heat exterior syndromes, it helps clear Heat from the head and face, relieve headaches, soothe sore throat, open the nasal passages, promote sweating, and support natural fever reduction. Beyond respiratory benefits, Bo He also improves digestion by relaxing smooth muscles, reducing gastrointestinal spasms, relieving bloating, nausea, and supporting bile secretion. Modern studies highlight its antibacterial, antiviral, and antifungal properties. The herb also soothes Liver Qi stagnation, reduces stress, brightens the eyes, enhances mental clarity, and boosts alertness. Rich in menthol, its essential oil provides cooling analgesia, reduces neuropathic and muscular pain, and improves scalp microcirculation, supporting hair growth. Despite its many benefits, Bo He is contraindicated for individuals with Qi Deficiency, Yang Deficiency Cold (Xu Han), spontaneous sweating, hyperactive Liver Yang, and should not be used topically for infants due to the risk of respiratory suppression. This article presents a complete overview of Bo He's therapeutic actions, properties, chemical constituents, dosage, and safety considerations based on both TCM principles and modern research.
Du Zhong (Eucommia Bark) is one of the most important traditional Chinese medicinal herbs, well-known for its powerful ability to tonify the Liver and Kidneys, strengthen bones and tendons, and support pregnancy. The bark of Eucommia ulmoides is rich in bioactive compounds such as alkaloids, triterpenoids, saponins, flavonoids, vitamins, and essential minerals, giving it a wide range of therapeutic benefits. Du Zhong is commonly used in formulas that treat lower back pain, weak knees, joint degeneration, osteoporosis, as well as nocturnal emission, impotence, and frequent urination caused by Kidney deficiency. In gynecology and obstetrics, Du Zhong is highly valued for its ability to stabilize pregnancy, prevent miscarriage, and strengthen the overall condition of pregnant women. The herb also helps lower blood pressure, reduce cholesterol, and promote vasodilation, making it beneficial for cardiovascular health. Thanks to its anti-inflammatory and strong antioxidant effects, Du Zhong enhances immune function, protects nerve cells, regulates blood sugar, and supports lipid metabolism—making it suitable for individuals at risk of diabetes or metabolic disorders. Modern research further shows that Eucommia leaves offer similar medicinal effects to the bark, providing a more convenient alternative. Du Zhong can be used in various forms such as decoction, medicinal wine, powder, or herbal extract, making it versatile for different wellness needs. Although generally safe, it should be used with caution in individuals with yin deficiency heat or latex allergies. With its wide-ranging therapeutic properties, Du Zhong has become a highly valued herb for supporting bone health, reproductive health, cardiovascular function, and immunity.
