I have taken them for 14 days and I am not sure they made a difference. Perhaps my right knee is a little better wondered about the recent heart burn and today I am sure it is those caps, as a few minutes after taking them I had heart burn, I am not taking them any longer on an empty stomach as advised, as I read the warming herbs would be bad on an empty stomach..I think I have to reduce them to 2 capsules and see if it will still me heart burn.
I regret now that I ordered 6 bottles of them.