HUGE fan of Mg12! It really does work! As a highly active health & fitness coach & gym owner, my body is under physical stress off and on all day. Not only am I rarely sore when I use Mg12-even after heavy lifting days, I have noticed that the ailments of Plantar Fasciitis and tendinitis have become a thing of the past since using the bath salts! My students are sold on it as well! Amazing product!