 So it doesn't just mask pain. It helps reduce or even eliminate it. In about three weeks, you'll know if it's working because you'll feel the difference all day, every day. So whether it's neck or back, joint or muscle pain, if you're looking to feel better and live better, give Relief Factor a try. Go to relieffactor.com or call 1-800-4-RELIEF and save on your first order. That's 1-800-4-RELIEF.