THCA stands for tetrahydrocannabinolic acid, a organic compound in raw cannabis. It doesn’t result in a large on its own. Heating THCA as a result of decarboxylation turns it into THC, the Energetic ingredient responsible for cannabis’s psychoactive consequences. https://rowanreqa97520.blogdigy.com/the-science-of-thca-how-heat-turns-it-into-thc-53061264