It is WAY BETTER than
It is WAY BETTER than the cheap magnesium that is in 99% of the choice at the drug store. No wonder it's less expensive also, it's worth nothing. This one from Smart Solution is way better and I trust much more this company over unknown or chinese sources from Amazon that can put anything they want on their sticker.
I had a very good deal during the boxing day and I bought for a full year worth of magnesium, it was really worth it!