Singer's Herbal Tea, or Run hou cha, is a well-known Chinese pharmacopoeia formula designed to soothes the respiratory tract and other throat discomforts. It is recommended to promote the return of the voice.

In fact, Run hou cha soothes throat discomfort so as to maintain a healthy voice. In the event of voice loss, it helps to promote its recovery by invigorating the Lungs and clearing the respiratory tract while fighting against the effects of cold or fatigue on the voice.