K2/spice refers to a category of chemical substances named artificial cannabinoids. These chemical substances are created while in the lab and they are just like substances found in cannabis. Of course, you can customize the potency of the selfmade K2 Spice by altering the ratio of artificial cannabinoids to binder. https://andrebyhuf.thelateblog.com/30668297/a-review-of-k2-spice-powder