A friend of mine turned me onto this product because I suffer from chronic knee (and other joints) pain and I don't want to rely on prescription pain killers for the rest of my life. I was skeptical but decided to give it a try and I'm so glad I did! I purchased 2 of the K Chill Extract capsules and within 30 minutes, my knee pain faded to almost nothing. However, I also noticed that I had more energy than normal and I could actually focus on the task in front of me!! I had no idea that it had those benefits too!!! I took one capsule and it lasted for most of the day- way longer than my pain killers ever did!!! I was sold on this the first time I tried it- it's a life changer and I can't wait to try some of the other products!! I'm definitely a customer for life!!