Most magnesium supplements pick one form. The argument for picking four is that they behave differently once they are in you, and a blend hedges rather than betting on one.

This one uses citrate, bisglycinate, malate and taurate, each in liposomal form, at 256mg, 256mg, 113mg and 85mg per capsule respectively. Together they deliver 60mg of elemental magnesium.

That elemental figure is the number to compare between products. A label quoting compound weights rather than elemental content will always look bigger without delivering more, and this one gives you both, which makes the comparison honest.

Adults 18 and over: one to four capsules per day, with or without food. Sixty vegetable capsules, so the bottle lasts anywhere from a fortnight to two months depending on your dose.