Immune Booster Supplement for Frequent Colds, Seasonal Wellness & Everyday Defense | Silkie Herbs 免疫强Immune Booster is a traditional Chinese herbal formula designed to support a healthy immune system, strengthen defensive Qi (Wei Qi), and promote overall wellness throughout the year. In Traditional Chinese Medicine (TCM), a strong immune system depends on the proper function of the Lung, Spleen, and defensive Qi. These systems help the body maintain resilience during seasonal changes and support the body's natural ability to respond to environmental