Jade Windscreen is based on the classical formula Jade Windscreen Powder (Yu Ping Feng San), a quintessential formula to bolster the Defensive (Wei) Qi. This modified version includes additional herbs to harmonize the Nutritive (Ying) and Defensive (Wei) Qi and further supplement the Middle Burner and Qi, making it an excellent choice for adults and children to support immunity and general wellbeing. TCM Actions Supplements the Lung and Defensive (Wei) Qi, stabilizes the Exterior and fortifies the Spleen Clinical Applications Supports the immune system Supports healthy respiratory functions Supports general wellbeing Supports healthy Lungs Supports healthy energy levels in cases of occasional fatigue and lethargy Ingredients Huang qi (Astragalus root) Bai zhu (White atractylodes rhizome) Fang feng (Siler root) Gui zhi (Chinese cinnamon twig) Bai shao (White peony root) Shan yao (Chinese yam rhizome) Hei zao (Black jujube fruit) Cautions Contraindicated during a Wind Cold or Wind Heat invasion.