Kironide

Kironide is a natural substance found in the environment of the planet Platonius in Star Trek. It is mentioned only in the TOS episode "Plato's Stepchildren", making it a technology of the week.

When ingested by human beings, kironide interacts with pituitary hormones to produce telekinetic abilities. The strength of these abilities is proportional to the concentration of kironide metabolites in the subject's system. Dr. McCoy determined the source of the abilities of the planet's population and was able to produce even stronger abilities in Captain Kirk and Spock in just a few hours by injecting them with kironide, allowing the three to escape imprisonment by the Platonians, but the technique has never been replicated.