I teach yoga and I use the Muscle and Joint Mineral Rub ALOT! I gift it to my yoga students and they love it. I am often overly enthusiastic about what my 55 YO body can do. Strains in my back happen frequently. With an application of Mineral Rub and a good nights rest, I have relieved my back pain on occaisons too numerous to count. I slather it on my back, I put on an old t-shirt and I go to sleep. I wake up and wiggle and twist and then I am ready to teach yoga!