MAG365 is a premium brand of ionic magnesium citrate powder. This top selling brand is natural and free from fillers and common allergens. MAG365 is owned by ITL Health, the makers of PrizMAG, the only magnesium bisglycinate that is free from fillers, stearates, magnesium oxide and HPMC. ITL Health strives to manufacture the highest quality magnesium supplements at an affordable price.