Isatis Root Tea, or Ban Lan Gen, is a simple herbal remedy originally crafted to prevent and treat mass influenza outbreak in China over 2,000 years ago. Today is can be found in most homes as a defense against the common cold, sinus infection, seasonal viruses or allergies, and the flu. It was also used during the COVID-19 Pandemic as a jumping off point for most herbal remedies for prevention. The herb, sometimes called Woad or Indigo Root, is known to Clear Toxic Heat and Cold from the Blood and is antiviral, antibacterial, and anti-inflammatory. With so much good, it’s no wonder Ban Lan Gen is considered a herbal apothecary must-have!