1 ounce $15   2 ounces $27   4 ounces $48   Purchase here:  https://wildnweedy.com/product/japanese-knotweed-polygonum-cuspidatum/

You can read a little more about it’s applications for Lyme disease here: https://wildnweedy.com/herbal-healing/japanese-knotweed-root-polygonum-cuspidatum/

And an article by Stephen H. Buhner about it’s use in the current pandemic here: https://www.stephenharrodbuhner.com/wp-content/uploads/2020/03/coronavirus.txt.pdf