Of these 6 I have used and am still using the turmeric and it has helped my achy knees a lot. I was surprised that it helped as much as it did. I take 2 capsules per day.
It has worked well enough that I have not tried the others but Search Herbal Remedy has the whole list and tells you how they are good.
The Top 6 Natural Anti Inflammatory Herbs
http://www.searchherbalremedy.com/the-top-6-natural-anti-inflammatory-herbs/
