Excellent article! I started a company to provide DDW to the U.S. market, at 5 & 10ppm total deuterium content.

Its really hard to make this stuff especially at this low amount of deuterium, but it makes it more cost effective for the consumer as one can dilute it for the deuterium depletion desired. The site is drinklitewater.com

For years I did the freezing method and it just doesn’t work that well, 10 cycles and you only remove like 5ppm, so that was useless.

Now we do vacuum rectification. Unfortunately, there is so little of this water available because of how long it takes to make and the difficulty level.

There are some people in the U.S. I know that are able to reduce down to 125ppm and if they can commercialize it, that is promising, especially since when you consider that the Hunza people who were studied for their increased longevity and excellent health (before the road came in), were drinking DDW at around 135ppm.