Energy & Stamina Supplement for Fatigue, Stamina & Daily Vitality | Silkie Herbs 補中益氣Energy Endurance is a traditional Chinese herbal formula designed to support healthy energy production, promote the smooth movement of Qi, and help maintain physical and mental vitality. In Traditional Chinese Medicine (TCM), persistent fatigue, low motivation, reduced stamina, and feelings of exhaustion are often associated with imbalances involving the Spleen, Liver, and Qi energy systems, which help transform nutrients into usable energy and