Isatis indigotica powder extract, also known as "woad" is newly available. This botanical, native to Central and Western Asia, has long-standing roots in Traditional Chinese Medicine specifically for support against symptoms stemming from viral conditions.
According to Chang, S-J, et al, in the abstract for their published study, "Antiviral Activity of Isatis indigotica Extract and Its Derived Indirubin against Japanese Encephalitis Virus," (Evidence-Based Complementary and Alternative Medicine, 2012; doi:10.1155/2012/925830), "Accumulated experimental evidence indicates it and related components as associated with antiviral activity.... Among natural compounds identified from I. indigotica—for example, indican, isatin, indirubin, and indigotin—indirubin exhibits multiple immunomodulatory and antiviral effects."
"This most recent research shows that medical experts continue to seek powerful and effective immune-support natural ingredients that may be used to keep populations healthy through the immune system's ability to functional optimally," says Carol Cheow, general manager of Cactus Botanics. "The study shows that Isatis indigotica may be an attractive defense weapon for consumers seeking immune-bolstering supplements."
Isatis indigotica powder extract comes in both 5:1 and 10:1.