Due to legal restrictions in the US, researchers cannot easily study cannabis products purchased from dispensaries and must use standardized cannabis sourced from NIDA.

“because of the way that the you can legally study Canada Cannabis in the States you couldn't just go down to a dispensary and buy the products that everyone on the street are using which is kind of like it's been a weird thing for a lot of people because they're like why wouldn't you study what we're using but because of the legal aspects of this you could bring those products into the lab they'd never been standardized no one knew exactly what was in them pesticides all this other stuff that could influence it so from a safety perspective it was always like no you use the the Cannabis that sourced from naida”