Cannabinoids
THC
THC is the main intoxicating compound in cannabis.
Last reviewed: 2026-09-14
The basics
The product form matters. Eating an edible is not equivalent to inhaling a product with a similar-looking number on its label. Read the amount and units before making a comparison.
What the evidence means
An effect can be delayed, especially with edibles. A potency figure should not be treated as a promise of a particular mood, a safe driving time, or a treatment result.
A useful question
What is the amount per serving and per package, and what form is the product?
Sources and further reading
Use the sources to check the scope of each claim. A chemical measurement, a laboratory experiment and a study in people answer different questions.