THCA gummies are edible candies infused with tetrahydrocannabinolic acid (THCA), a non-psychoactive compound in raw cannabis that converts to psychoactive THC when heated (decarboxylation), offering potential wellness benefits like anti-inflammatory effects without the typical "high" unless heated, making them great for sustained relief or mild introduction to cannabinoids, available in various flavors and often blended with other cannabinoids like D8 or D9 for more intense effects. The effect of a THCA gummy depends on how it's made; raw THCA offers wellness, while heat transforms it into psychoactive THC, so understanding the product's processing is crucial.