#ELIXIR OF IMMORTALITY DRAGON BALL ANDROID#
Gero shortly after activating Android 17 and Android 18 that the process of configuring humans into cyborgs essentially grants them "eternal life".
Drinking the elixir produced by the Fountain of Youth not only gives a person eternal youth, but also makes them unable to be killed even by someone much stronger than they are, as Turtle said even King Piccolo wouldn't be able to kill Master Roshi if he drank from it.
However, they can still be killed during battle, with suicide, and/or being caught in a lethal event. Wishing for Eternal Youth, which halts aging and thus leaves them unable to die of natural causes.Collecting the seven Dragon Balls (or, alternatively, the Namekian Dragon Balls, Super Dragon Balls, or Black Star Dragon Balls) and having a wish for immortality granted by an Eternal Dragon.3 Characters who have pursued Immortality.