 Well, Relief Factor was developed by doctors and uses a unique formula of natural ingredients. It doesn't just mask the pain. It helps reduce or even eliminate it. Wherever you're hurting, back, neck, joints, muscle pain, in three weeks or less, if you're like me, you'll start to feel the difference all day, every day. I love seeing the guy on TV that says, I told my wife, you don't understand. That pain is gone.