Cannabis contains more than 100 known cannabinoids, but only a handful appear in large amounts or show up on most product labels. The best known are delta-9 THC (tetrahydrocannabinol) and CBD (cannabidiol), followed by CBG, CBC, CBN, THCV, CBDV, and delta-8 THC. Cannabis also produces acidic cannabinoids such as THCA, CBDA, and CBGA, which are the raw forms found in the living plant before heat or time changes them.
What are cannabinoids?
Cannabinoids are chemical compounds that interact with the body's endocannabinoid system, a signaling network involved in mood, appetite, sleep, pain, and immune response. Plants in the Cannabis genus make their own versions, called phytocannabinoids. The human body also produces similar compounds, known as endocannabinoids.
How many cannabinoids are in cannabis?
Researchers have identified over 100 cannabinoids in cannabis, and the count keeps rising as analytical chemistry improves. Most of them appear at trace levels. THC and CBD usually dominate the plant's resin by weight, which is why breeding and lab testing focus on them first.
Major cannabinoids list
These are the cannabinoids most often named on certificates of analysis and product labels.
- Delta-9 THC: The primary intoxicating cannabinoid in cannabis. It binds CB1 receptors in the brain and produces the high associated with marijuana.
- CBD: Non-intoxicating under federal US law. It modulates CB1 and CB2 receptors indirectly and is the most common cannabinoid in hemp-derived products.
- CBG: Called the mother cannabinoid because CBGA is the precursor that enzymes convert into THC, CBD, and CBC. CBG is non-intoxicating.
- CBC: Non-intoxicating and often grouped with CBG and CBD in minor cannabinoid blends. It shows more affinity for CB2 receptors than CB1.
- CBN: A degradation product of THC that forms as cannabis ages or is exposed to heat and light. It can be mildly psychoactive at high doses.
- THCV: Structurally similar to THC but often described as a neutral antagonist at low doses. Effects are dose dependent.
- CBDV: A non-intoxicating homolog of CBD studied in seizure and nausea research.
- Delta-8 THC: A double-bond isomer of delta-9 THC that occurs in small natural amounts. It is psychoactive and legally complex in the US.
Acidic cannabinoids: THCA, CBDA, CBGA, CBCA
Raw cannabis contains acidic cannabinoids that carry a carboxyl group. THCA, CBDA, CBGA, and CBCA are the direct forms produced by the plant, and they convert to their neutral counterparts through decarboxylation. Heat, time, or light drives that conversion, which is why smoking, vaping, or baking changes the cannabinoid profile of the same flower.
How cannabinoids interact with the endocannabinoid system
THC binds directly to CB1 and CB2 receptors, which explains its broad psychoactive effects. CBD has low affinity for both receptors and instead modulates them, influences serotonin receptors, and affects enzymes such as FAAH. Minor cannabinoids show mixed receptor activity, which is one reason researchers study them separately.
Are cannabinoids legal in the United States?
Legality depends on the source plant and the specific compound. Hemp with no more than 0.3 percent delta-9 THC on a dry weight basis is legal under federal law, and CBD from hemp is sold nationwide. Delta-8 THC and other intoxicating hemp-derived cannabinoids fall under a patchwork of state rules, and the FDA has not approved cannabis for general medical use. The FDA has approved one CBD drug, Epidiolex, for specific seizure disorders.
Frequently asked questions
Which cannabinoid is most abundant in cannabis?
Delta-9 THC usually dominates in marijuana-type plants and CBD in hemp-type plants. CBG, CBC, and other minor cannabinoids typically appear at far lower percentages on a lab report.
Do minor cannabinoids get you high?
Most do not. CBG, CBC, CBDV, and CBD are considered non-intoxicating, while CBN, THCV, and delta-8 THC can produce psychoactive effects at sufficient doses.
What is the difference between THC and CBD?
Both share the same molecular formula but differ in structure, which changes how they fit cannabinoid receptors. THC activates CB1 receptors and causes intoxication, while CBD does not activate CB1 strongly and is not intoxicating.
Are cannabinoids the same as terpenes?
No. Cannabinoids are the compounds that act on cannabinoid receptors, while terpenes are aromatic oils that give cannabis its smell. Both appear on full-panel lab tests, but they are chemically distinct classes.
What to check on a cannabinoid lab report
A certificate of analysis from an accredited lab lists each cannabinoid as a percentage of weight. Compare total THC, total CBD, and the minor cannabinoid column, and confirm the batch number matches your product. Third-party testing verifies the labeled profile and screens for pesticides, heavy metals, and residual solvents.