This product really works! I use it on my cranky arthritic knees once at day, usually before bedtime, to eliminate any aches and pains that might otherwise keep me awake. I also use for lower back pain, and it always works. These patches have enabled me to stay pain free and keep fit and active. I have told many friends about this amazing product, and they are also now regular users. It is so nice to see a product work, exactly as advertised!