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 ...

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, microbiology, ...

Swedish researchers have developed a rapid method for measuring the effect of new psychoactive substances (NPS). The study published in Forensic Science International explained the method's scientific ...

In an effort to adopt testing and tracking requirements for medical cannabis, lawmakers are trying to strike a balance ...

OKLAHOMA — The Oklahoma Medical Marijuana Authority (OMMA) has issued a recall for products produced by Michael William Redus DBA Rocking R Cannabis due to improper testing methods. If you're a ...

BOULDER, Colo. — A University of Colorado Boulder researcher is raising new concerns about what may be lurking in legal cannabis. Tess Eidem, Ph.D. said certain toxins tested for in food are not being ...