What is THCA?  Updated: April 19, 2025 For decades, most research exploring the therapeutic potential of cannabis focused on the overall effects of delta-9 THC (Δ-9 tetrahydrocannabinol) – the cannabinoid that delivers the "recreational" effects cannabis is known for. While you'll still find multiple (outdated) sources suggesting the raw, pre-evolved form of THC is inert or "inactive," a rapidly growing body of evidence tells an entirely different tale. As consumer awareness increases, so has the number of The Superior Dispensary shoppers asking, "What …