Add Yahoo as a preferred source to see more of our stories on Google. An analysis of 23 cannabis samples from 10 dispensaries found a majority had at least 30% less THC than they were reported to have ...

Sergio Ramirez, a scientist at Golden State Collective Cannabis Laboratories, demonstrates how the new lab tests the qualities of medical marijuana. (photo by Daniel Archuleta) EASTSIDE — When a ...

Minnesota quietly marked an important milestone last week on its long and fraught journey toward launching a recreational marijuana market: the first legal sale of cannabis flower grown by a new state ...

A majority of cannabis flower products purchased at licensed retail pot shops in Colorado contained less THC than indicated on the label, according to a study performed by a researcher at the ...

The median reported potency of regulated weed in California has been steadily dropping over the past six months, according to a report from Bay Area news source SFGate. The drop in potency, which ...

A Jackson-based cannabis testing lab announced Tuesday that potentially deadly toxins have been detected in over-the-counter cannabis products widely available throughout Mississippi. Employees and ...

LANSING, MI -- Michigan marijuana customers want to get high, but the information they use to achieve that may be flawed, industry insiders and regulators say. Test results, specifically for THC ...

Colorado marijuana manufacturers would no longer be allowed to choose which product samples they send for mandatory lab ...

Minnesota lawmakers are weighing a one-year delay of in-state testing requirements for the low-dose THC seltzers and gummies that have flooded breweries and liquor stores. Why it matters: The move ...

Cannabis flower sold in Colorado claims to contain much more tetrahydrocannabinol, or THC, than it actually does, according to my findings published in the peer-reviewed journal PLOS One. THC is the ...