Packages of synthetic marijuana are one place you won’t find a “Made in China” sticker. But in a report airing tonight, ABC’s 20/20 discovered that the pouches of dried leaves and herbs—sold as incense—probably should.

The “incense” gets its punch from a variety of synthetic cannabinoids sprayed onto the dried plant matter and ABC’s investigation traced the source of the chemical back to suppliers in China.

A few weeks ago we reported on the dangers of smoking products such as “K4” and “Spice Gold.” In most states they are completely legal and sold in convenience stores and smoking shops. Because they are marked “Not for human consumption,” the FDA does not regulate them and no ID is required to purchase them. You don’t have to be 18 years old to buy a pack of fake pot.

For the full story, go read our report, “The Straight Dope on Fake Dope.”