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 ...

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 ...

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 ...

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 ...

DENVER — Elizabeth and Luke Mason, scientists who met during graduate studies at Colorado State University, saw cannabis legalization in 2012 as an opportunity. With backgrounds in biochemistry, ...

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 ...

MCR’s lawsuit alleges that eight marijuana testing labs use deceptive practices to pass samples that should never reach dispensary shelves, ultimately resulting in MCR losing dozens of clients MCR ...

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 ...

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 ...