Well. After looking into it as fully as possible, it's definitely purely water loss. Shame. Great for something extremely temporary, but if you're after ANY kind of lasting effects, look elsewhere. This won't ever do anything you won't immediately put right back once you stop doing it and just maintain normal hydration levels.
You'd have to intentionally maintain a dehydrated state to keep the water off. Which wouldn't be good at all.
You'd have to intentionally maintain a dehydrated state to keep the water off. Which wouldn't be good at all.