THCa (tetrahydrocannabinolic acid) is a non-psychoactive compound in raw cannabis. When you heat it by smoking, vaping, or cooking, it converts to THC, which gives you the psychoactive effects. So, THCa is like the raw form, and THC is the activated form.

THCa is federally legal in the United States as long as it complies with the 2018 Farm Bill, which allows hemp products containing less than 0.3% delta-9 THC by dry weight. However, state laws vary, so check your local regulations before purchasing.

THCa has been associated with potential anti-inflammatory, neuroprotective, and anti-nausea properties. It is often used for wellness purposes and can provide relaxation, pain relief, and mood enhancement when converted to THC.