In Traditional Chinese Medicine (TCM), Zuo Gui Wan reinforces the kidney and nourishes Yin of the Yin-Yang principles. Yin and Yang are the opposing principles that depend on each other for existence within any subject as a whole, such as female and male for mankind, dark and light for a complete day, negative and positive for numbers. A robust interaction and balance of Yin-Yang forms the basis of a good health. The kidney is the innate foundation of all organs with respect to the Yin-Yang principles, Qi essence etc.

Zuo Gui Wan is indicated in China Pharmacopoeia1 for the Yin deficiency of the kidney, which may be presented as weakness of the loins and the knees; sweating; lassitude; dry mouth, typically in association with aging.

Zuo Gui Wan may support sexual wellness. Zuo Gui Wan may promote female reproductive health as well.