Transcutaneous magnesium comes from the Zechstein Sea , an ancient sea 2 km underground, dating back 250 million years and completely removed from any pollution. It was therefore necessary to find a pure source of magnesium, far removed from our current pollution, to find a higher therapeutic effect, qualitatively speaking, the point cures but not sufficient to which we are accustomed in our modern societies. magic.piktochart.com/output/12082046-magnesium-transcutane