Earlier quoted context omitted.
It's called "blue crystals" in marketing jargon, after literal blue crystals and other pointless things. Anything that can be used for market differentiation or that creates a "health aura" effect can boost sales.
Do you have a source for this "blue crystals" term? I'm interested.
Since the actual chemistry is over most people's heads, the "blue crystals" are where they invest all the magic that makes it work just like the ads claim it will.