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 ...

BOZEMAN, Mont. — In the same medical-arts building with an eye doctor, a dentist and a traditional pharmacy, walls are being painted for a new laboratory in Bozeman that aims to test the potency of ...

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 ...

State regulators are a major step closer to ending their four-year long legal battle with cannabis testing lab Viridis Laboratories. An administrative law judge overseeing a case brought by Viridis ...

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 customer enters the front door of a cannabis retailer in New York. Cannabis retailers say it's hard to sell flower with less than 20% THCa, the form of tetrahydrocannabinol that becomes psychoactive ...

A study showed that many cannabis testing labs nationwide may misrepresent the strength and growth of mold on products. The year-long study, conducted by MCR Labs in Massachusetts, requested data from ...

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 ...

Anna Schwabe is a board member for the Agricultural Genomics Foundation, not-for-profit group. She also worked for Mile High Labs following post graduation, but was not involved in lab testing for ...