Kolto was a healing substance mined from the ocean floor on Manaan by the planet's indigenous Selkath. In the years following the invention of the healing substance bacta, kolto came to be seen as inferior, although the Selkath continued to mine it. Shortly before the Stark Hyperspace War, a conflict between the Stark Commercial Combine and the Galactic Republic, the Selkath claimed that the Trade Federation shipping cartel was illegally mining kolto from Manaan's oceans, although the monastic Jedi Order was unable to verify the claims following an investigation by Jedi Master Jard Dooku and his apprentice Obi-Wan Kenobi.
- Star Wars: Knights of the Old Republic (First appearance)
- Star Wars: Episode I - The Chosen One (Mentioned only)