THC is short for tetrahydrocannabinol. It is a cannabinoid found in cannabis. THC acts on the cannabinoid receptors in the brain and is responsible for the psychoactive effect of marijuana.

Learn more about THC:

More plant elements:

Cannabinoids | CBD (cannabidiol) | Terpenes

BACK TO GROW GUIDES

World Icon

500 Helpful Articles

200 detailed grow guides

Group Icon

35,000+ Daily Visitors

500,000+ Grow Bible readers

Plant Icon

100 Hand-Picked Strains

8,000+ connected businesses