For%20Extemporaneous%20Compounding%20only.Designs%20for%20Health%20Magnesium%20Threonate%20utilises%20Magtein%C2%AE%2C%20a%20clinically%20researched%20form%20of%20Magnesium%20Threonate%20and%20is%20a%20100%25%20pure%2C%20easy-to-dissolve%2C%20excipient-free%2C%20virtually%20tasteless%20powder. %C2%A0Magtein%C2%AE%20was%20developed%20at%20the%20Massachusetts%20Institute%20of%20Technology%20and%20the%20Tsinghua%20University%20in%20Beijing%20with%20the%20aim%20of%20producing%20a%20unique%20and%20highly%20bioavailable%20form%20of%20magnesium%20capable%20of%20crossing%20the%20blood-brain%20barrier. %C2%A0Magnesium%20Threonate%20is%20a%20unique%20and%20highly%20bioavailable%20form%20of%20magnesium. %20The%20compound%20consists%20of%20magnesium%20and%20the%20L-isomer%20of%20threonic%20acid%20L-%20Threonate%2C%20a%20metabolite%20of%20ascorbic%20acid. %C2%A0Magnesium%20is%20the%20second%20most%20abundant%20cation%20of%20the%20intracellular%20fluids%20of%20the%20body%20and%20is%20involved%20in%20over%20300%20biochemical%20activities%2C%20including%20enzymatic%20processes%2C%20macromolecule-organelle%20binding%20(mRNA%20binding%20to%20ribosomes)%20and%20organelle%20functioning%20(mitochondria%20and%20ATP%20production). %20Due%20to%20its%20critical%20involvement%20in%20the%20functioning%20of%20the%20sodium%2Fpotassium%20ATPase%20pump%20and%20calcium%20pumps%2C%20magnesium%20is%20also%20vital%20for%20optimal%20neuromuscular%20communication%20and%20muscle%20contractility%20and%20relaxation. %20It%20is%2C%20therefore%2C%20vital%20for%20the%20adequate%20functioning%20of%20almost%20every%20biological%20system.