It took me a week to get the facts about these hydrogen water bottles! Several manufacturers state on their web sites that they add hydrogen to the water, to which my friend Marv said, that would be impossible to add hydrogen to a closed air tight bottle! After talking to several bottle manufacturers and doing my own research, what I found was these bottles
release hydrogen gas into the water through a process called electrolysis. The hydrogen molecules are split from the oxygen and turned into a gas. That is the secret sauce. The unit then bleeds off the separated oxygen and waste product made through the process. It is this hydrogen gas that provides the health benefit. There are many studies showing that H2 gas provides extensive health benefits to humans through animal testing. www.ncbi.com