THCA concentrates are potent, extracted forms of tetrahydrocannabinolic acid, the non-psychoactive precursor to THC, found in raw cannabis, that become intoxicating THC when heated (dabbing, vaping) and are prized for high potency, diverse textures (diamonds, wax, live resin), and potential therapeutic effects like anti-inflammatory relief, often used for wellness without the immediate "high" of traditional cannabis.