Thanks yaniv_naced, Do you think the quality was as good? Phis thought Zhang's quality was the best. He said it had a fishy smell and it had a 9 to 1 potency so one gram of his herb was equal to 9 grams of a regular herb. I bought some online that has a 5 to one potency and hopefully it smells like fish! I got it for $18 for 100 grams and they also sell a kilo for about $110. I will have to pack it in capsules myself. I will post back on it's effectiveness. I heard the clove bud oil works but don't know how much to use. I had not heard about ozonated oils so appreciate that information. I also read that Houttuynia is a plant that can be grown in most of the US and it is very invasive and easy to grow, taking over everything. It is also called Chamelian plant. Some people use it in salads. The company I got the hh from is kalyx.com and they also carry TOA free cat's claw in capsule form. As it is necessary to take much more than what Cowden or Zhang recommend, it would cost a fortune to use their herbs so it is good to compare sources.