The company Salt Wrap has been very responsible easy to work with so far, though I've only made one order, for MAG R&R - Nighttime Muscle Cramps & Relaxation Support. I liked the fact that the list and description of the ingredients in their ad was thorough, and that the company explained what each was for. I've been taking the one or two tablets for about ten days or 2 weeks, at night just before bed, or just a couple of hours earlier. I have noticed a clear reduction in the occurrence of my nocturnal leg cramps, as I'd hoped. Glad I decided to try it!