There are a few methods to make fake blood for the movies (or you can simply buy it). But what about drugs? Of course, the actors won’t use the real thing on set, but it’s not that easy to find substitutes as one may think. Fake drugs need to look and act the same as the real ones, but they also have to be completely safe to ingest. So how do they do it? In this fantastic video from Insider, prop master Joel Barkow shares some tricks of the trade and reveals how fake drugs are made for movies.