Chinese Herbals Jade Windscreen Kan Herb

This formula serves as a barrier against the invasion of wind. It is considered to be as valuable and precious as Jade. This formula stabilizes the exterior ( your protective Qi especially the lungs) It protects against recurrent colds and other pathogens that attack the lung.  This formula is taken before you have a cold or flu.  It is recommended to take it for a few weeks to fully develop the protection.