You may have noticed three distinct letters on a lot of products lately: CBD. CBD stands for cannabidiol, and it’s part of the cannabis plant from which we also get marijuana. We spoke with Martin A. Lee, author of “Smoke Signals: A Social History of Marijuana – Medical, Recreational and Scientific” and the director of Project CBD, an educational site about CBD and its benefits, to find out what exactly CBD is and how it’s made. Following is a transcript of the video.

Narrator: With all the weed trucks and imagery all over New York these days, you might think to yourself, “Hey, is marijuana legal now?”

Not quite.

What these companies are selling is actually something called CBD. It’s found in everything from lollipops to lattes.

And business is booming.

CBD products are part of what is estimated to be a roughly one billion dollar industry in the United States. And it’s perfectly legal.

So, what does CBD have that marijuana doesn’t?

Martin Lee: The fact of the matter is we’re kind of in the midst of a CBD craze right now.

Narrator: Martin Lee is the director of Project CBD, an educational platform that focuses on cannabis science and therapeutics.

Lee: CBD stands for cannabidiol. That’s a component of the cannabis plant that has significant therapeutic properties, but it’s not intoxicating. It doesn’t get you high like THC.

Narrator: As it happens, not all cannabis plants are created equal. Take a look at these two varieties. One is marijuana, the other is hemp. One gets you high, the other doesn’t. The key difference is what’s on the inside.

Lee: THC and CBD are the main components of the cannabis plant.

Narrator: THC is what makes you feel high, and marijuana plants are loaded with it.

Dave Chappelle: I…