If you're after sleep, muscle relaxation, or general wellbeing support, don't let the "1000mg" on the label mislead you — the actual elemental **Magnesium** per tablet is 334 mg, which is what your body absorbs and uses. That said, 334 mg is a strong dose, landing near the top of the 100–400 mg clinical supplemental range.

The formula blends four magnesium forms: oxide (209 mg), phosphate (50 mg), amino acid chelate (50 mg), and citrate (25 mg). The chelate and citrate portions absorb well, but the majority comes from magnesium oxide, which has significantly lower bioavailability — typically around 4% absorption. This means your actual absorbed magnesium is considerably less than the 334 mg on the label.

The key tradeoff here is that while the total elemental dose looks generous, the heavy reliance on oxide means you're not getting as much usable magnesium as the number suggests. If sleep or muscle recovery is your goal, a product using primarily glycinate or citrate would deliver more per milligram.