Delta-9 THC (Delta-9-tetrahydrocannabinol) is the primary psychoactive cannabinoid found in cannabis. It can produce effects such as euphoria, relaxation, altered perception, and changes in the perception of time. Delta-9 THC may also offer potential benefits, including helping stimulate appetite, reducing certain types of nausea and vomiting, providing relief from some forms of pain, and promoting relaxation in some users. Its effects can vary depending on the individual, dosage, and product.