K2, also called “spice”, is a mix of shredded plant material and laboratory-made chemicals  which produce mind-altering effects. K2 is labeled “not for human consumption”, but still  misleadingly may be referred to as “synthetic marijuana” or “fake weed” or labeled as incense.  The Drug Enforcement Administration has made many of the active chemicals found in Spice  illegal as effects of spice can be unpredictable and, in some cases, severe or cause death