Spectrox

Spectrox is a highly beneficial substance gathered from Androzani Minor. Spectox can naturally be found in the chrysalis of Spectrox Bats, which is found in dense, white balls. This unrefined spectrox can be deadly if touched or handled by Humans, since it has toxin similar to mustard nitrogen, which can cause spectrox toxaemia. Because of this, the spectrox is gathered by androids and brought to special refineries.

After it is refined, spectrox can be used to extend a life of a Human to nearly twice their normal lifespan and will greatly slow down the aging process. Because of this, spectrox was one of the most valued substances in the galaxy and many battles were fought over its possession. (DW: The Caves of Androzani)