From the terms "Lazarus Syndrome" and "Lazarus Effect", this "Lazarus" formula served as the ultimate goal that a certain group of scientists had long been wanting to achieve.
Basically, it is some sort of resurrecting drug that can bring a dead living thing back to life. It takes form of a glowing blue liquid that is plunged into the system of the subject and proceeds to make miracles happen.
According to the governing law, practices that involve manipulating the dead are strictly prohibited. That's because attempts to execute necromancy had violated a number of human rights back then. Since it's a research that's being conducted for many decades, a considerable portion of the society is aware of how inhuman and brutal some processes end up to be.