News — molecular hydrogen

What Dissolved Hydrogen Water Actually Is — and How We Measure It Dissolved hydrogen water is water that contains molecular hydrogen gas (H2) in addition to the hydrogen already present in H2O. The amount of hydrogen is typically measured in parts per million (ppm), which for water is essentially equivalent to milligrams per liter (mg/L). Most people know water as H2O: two hydrogen atoms bonded to one oxygen atom. Dissolved hydrogen water is something different. It is water infused with additional molecular hydrogen gas — and that free H2, not the hydrogen locked inside the water molecule, is what a...