It is sold at convenience stores and costs $20-$50 per 3 grams. It is legal and is undetectable in drug tests.
It has a few names other than laced marijuana, such as K2, Spice, Genie, Mojo or Zohai. Head shops sell it as for the most part it is not regulated in the United States but is banned in most of Europe.
Synthetic cannabinoid users report some effects similar to those produced by marijuana: