What on earth is K2? Introduction K2, also usually called "Spice," is usually a synthetic cannabinoid, a type of drug that mimics the results of THC (tetrahydrocannabinol), the psychoactive compound located in cannabis. Even though usually promoted as a safe or perhaps legal option to cannabis, K2 is everything but. https://k2onpaper28271.ampedpages.com/what-on-earth-is-k2-57390917