Delta-9 THC, Delta-8 THC, and Delta-10 THC are all different forms of tetrahydrocannabinol (THC), which is the primary psychoactive compound found in cannabis. The main difference lies in their chemical structures and potency. Delta-9 THC is the most well-known and abundant form of THC found in cannabis. It is responsible for the psychoactive effects commonly associated with a high. Delta-8 THC is known to have psychoactive effects, although they are generally considered to be milder and less potent than those of Delta-9 THC. Some users report experiencing a more clear-headed and less anxious high with Delta-8 THC. Delta-10 THC is a relatively new and less well-known form of THC. It is considered to have a potency similar to Delta-8 THC and is best used during the day as users have reported a clear headed and energetic effect.