Xin Yi is a traditional Chinese medicine herb known for its use in treating nasal congestion and sinus issues. It comes from the flower buds of the Magnolia biondii tree and is often used in herbal formulas to relieve symptoms of colds and allergies. In addition to its medicinal properties, Xin Yi is also valued for its aromatic qualities. The herb has a pleasant fragrance and is sometimes used in perfumery and aromatherapy. Its applications in both health and wellness highlight its significance in Chinese herbal medicine.