THC vs. THCA: What's the Difference and Which is Stronger? Updated: March 16, 2025 The Superior Dispensary cannabis experts provide insightful product recommendations to ensure you're getting the strain, product type, and potency most likely to deliver the outcome you're looking for. THC concentrations – the cannabinoid responsible for marijuana's "recreational" effect – are central to most purchasing decisions. The amount of THC reflected on flower and pre-roll packaging is based on the total amount of THC and THCA identified in batch …