After discovering the healing properties of bacta, the Human settlers of Thyferra began to exploit the Vratix addiction. They encouraged them to produce more and more bacta, which they then sold to the general public. The Vratix eventually became a slave labor force, while the settlers made huge amounts of money.
The Vratix were first mentioned in the new Star Wars canon in the 2019 reference book Ultimate Star Wars, New Edition. In the Star Wars Legends continuity, Vratix were first mentioned in the roleplaying game article "The Business of Bacta," written by Michael Kogge and published in the third issue of the Star Wars Adventure Journal magazine in August 1, 1994.
The Vratix were first mentioned in the new Star Wars canon in the 2019 reference book Ultimate Star Wars, New Edition. In the Star Wars Legends continuity, Vratix were first mentioned in the roleplaying game article "The Business of Bacta," written by Michael Kogge and published in the third issue of the Star Wars Adventure Journal magazine in August 1, 1994.
- Ultimate Star Wars, New Edition