Sheng Mai San, also known as Restore the Pulse or Ginseng & Schisandra Formula, is a classic formulation in Traditional Chinese Medicine (TCM). It consists of just three herbs: Mai Men Dong (Ophiopogon Root), Wu Wei Zi (Schisandra Berry), and Bai Shen (Ginseng root).
 
The famous herbalist Li Shi Zhen developed this formula based on his research into improving Qi (life force) and fluids. Originally featured in the medical text, Ben Cao Gang Mu, the formula continues to be used at TCM clinics today for a wide range of syndromes relating to Qi and Yin deficiency.