I ran the 2009 21km Two Oceans Half Marathon. I had bad knee pains before the race and received Yunnan Baiyao in my goody bag the day before the race. I sprayed my knees the night before the race and for the first time in months had no pain during the night. The next morning I sprayed before starting the race and magically – no pain! At about 16km samples were handed out at a waterpoint and took a red canister and sprayed both knees. I continued to the finishline without pain. Thank you for introducing me to your product.