delivers millions of free electrons because the ORP (Oxidation Reduction Capacity) is H4O-600mV which means it has the capacity to reduce toxic or free radicals. By drinking H4O -600mV you can promote or balance…

Waters containing dissolved hydrogen gas
Hydrogen gas has been shown to to be capable of reducing cytotoxic oxygen species in artificially-induced cell damage in laboratory animals; inhalation of the gas is apparently able to readily cross the blood-brain barrier and to reduce the effects of neuron damage due to ischemic attack.

See here for the Nature-Medicine article. An article by NIH researchers entitled The hydrogen highway to reperfusion therapy (Nature Medicine 13(6) 2007 673-74) suggests that hydrogen gas offers "explosive potential" [a rather unfortunate choice of words!] as a cytoprotective therapy for ischemia-reperfusion injury and stroke, but does not offer any actual clinical results. A 2008 article by a Japanese group found that hydrogen-saturated water was able improve glycemic response in a small group of diabetic patients.

Why settle for H2O when you can drink H4O?
As I see it, this small grain of scientific fact has been expanded into fully-fledged water-quackery pseudoscience by a Japan-based outfit that flogs something called "H4O Hydrogen-Bonded Water". This is apparently just water (H2O, which of course is always "hydrogen bonded"), to which molecular hydrogen (H2) has been added. Because H2 is practically insoluble in water, they bottle it under high pressure (very much as with ordinary carbonated water), but even then, the actual quantity of H2 in the water is minute, of the order of 10–6 mol/L— which hardly sounds like "reperfusion therapy" to me! Once the pressure is released and the water reaches the warm interior of your stomach, most of the H2 gas will bubble out of the water, making for an expensive (and potentially explosive!) burp. Although it is likely that a small amount of H2 can diffuse into the bloodstream, there is no reason to believe that it can have any significant beneficial effects.

The H4O product is touted as being a powerful reducing agent, despite the lack of evidence that ingestion of exogenous reducing agents has any beneficial health effects. One of their Web pages makes the following unbelievable claim:

From our studies, "H4O Hydrogen-Bonded Water" is able to control ingurgitation capability of macrophage that is etiology of diabetes, renal insufficiency and skin disorders. At the same time, our result of researchs showed that hydrogen has great
potential to prevents brain infarction and cancer.

In keeping with the alkaline-water craze, they say that the pH of the product is 7.7. This means that the water must contain something else in addition to hydrogen (almost certainly a metallic ion of some kind), but they don't say what this might be.

Joey Votto

On its Web site, the company claims that a famous professional athlete drinks its water even though it has not identified him.

Joey Votto