What are the active ingredients in Advanced Magnesium+ Powder?Updated a month ago

JSHealth Advanced Magnesium+ Powder contains 3 forms of Magnesium.

Active ingredients per level 3 g oral powder: 

Magnesium amino acid chelate 250 mg,
equiv. Magnesium 50 mg 

Magnesium citrate 647 mg,
equiv. Magnesium 100 mg

Magnesium glycinate dihydrate 434 mg,
equiv. Magnesium 51 mg

Total Magnesium 201 mg