THC is the primary psychoactive compound in cannabis that binds CB1 receptors to produce euphoria, relaxation, altered time perception, and heightened creativity. Measured values are typically reported as a percentage of dry weight using lab methods such as high-performance liquid chromatography. In flower, THC usually ranges from 10–30%, concentrates from about 50–90%+, and edibles report potency in milligrams. Most raw cannabis contains THCa, a non-psychoactive precursor that converts to THC through decarboxylation when heated. Potency percentages provide one data point but can mislead; cannabinoids, terpenes, product form, testing practices, and individual physiology together determine the real-world effects.
Walk into any dispensary today and you'll hear customers asking a common question: "What's the THC percentage?" For many, potency has become synonymous with quality, with the assumption that the higher the THC, the better the product. While THC content certainly plays a role in cannabis experiences, relying solely on that number is misleading. Understanding cannabis potency requires looking beyond percentages to consider how cannabinoids, terpenes, and individual physiology interact to create unique effects.
Tetrahydrocannabinol (THC) is the primary psychoactive compound in cannabis. It binds to CB1 receptors in the brain and nervous system, producing effects ranging from euphoria and relaxation to altered perception of time and heightened creativity. Its concentration in flower, concentrates, and edibles varies, but it is almost always displayed as a percentage on packaging. In cannabis flower, THC percentages usually fall between 10% and 30%. Concentrates can range from 50% up to more than 90%, while edibles express THC potency in milligrams rather than percentages.
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