Magnesium Glycinate 4-in-1 Complex, 976mg of Magnesium Glycinate

What the brand says

Sold as “Magnesium Glycinate 4-in-1 Complex, 976mg of Magnesium Glycinate, Citrate, Malate, L-Threonate & Vitamin B6 Supplement for Health | Third Party Tested - 90 Capsules”