"‘We have a liver to get rid of toxins from our body so “detoxing” in any other form is a myth,’ says Rin. ‘Unless there’s something wrong with your liver, there’s no evidence that foods or drinks help it detox."
LOL...
and...
"Black Water is the oddest looking of all the trendy drinks. It resembles cola or coffee in colour, but has virtually no taste. The pitch black colour comes from taking ordinary spring water and adding ‘fulvic acid’ — a naturally occurring substance that forms in the ground when microbes break down plant matter. Fulvic acid is extracted from shale mined from the ground."
I wonder if this is just a byproduct of shale oil production.
