Delta-8 THC is another psychoactive compound made from the cannabis plant. The difference between delta-8 and delta-9 THC is the way it’s processed naturally in the cannabis plant. Delta-8 THC has shown to be an effective pain reliever without causing a high that people sometimes experience with delta-9 THC. Many who use medical marijuana opt for strains with a higher concentration of delta-8 due to the pain relief without a change in their daily routine.