Proactive Energy Drink

Proactive Energy Drink is the ingenious idea of the Orders of Creators and Immortals. Originally begun as an effort to create a cheap, mass-produced elixir for Adepts alone, the Adepts on the project developed soon realized they could hide the elixir in plain sight. As an energy drink.
Proactive comes in multiple flavors, is sold in most countries, and is a favorite among the Uninitiated. To ordinary people the drink is simply a run-of-the-mill energy drink, with a few herbs and spices thrown in for extra kicks. But to Adepts, the drink restores health (often literally, as in it restores damaged tissue) and gives an added kick in executing their powers. 
There are limits to what Proactive can be used for, however, for the energy drink can only be taken a few times in short succession. Push it and it will cause major side-effects. The prominent of which is delirium: the Adept will feel intoxicated and disconnected from reality, often muttering nonsense and acting like a freak. 
Proactive is owned by a coalition of Immortals who act as the holders for the company originally responsible for developing it.