First of all: I had RLS and muscle cramps that were cutting into my sleep time, and MagR&R effectively treated that nonsense. Secondly, if you have an issue w/ your order, delightful staff will contact you PROMPTLY--actual human people doing actual customer service. So retro! Love it! Products aren't cheap; but as I told my husband, who is trying to heal from a moto crash and wanted to buy some garbage suppliments at costco: Do you want to waste money on something that doesn't work, or spend more on something that does? Yeah...that's false economy, right? Buy the thing that works. They have money-back guarantees, which says something about the efficacy of their product.