Add Yahoo as a preferred source to see more of our stories on Google. NBC News hired a lab to test THC vaping pens from both legal distributors and counterfeit ones and found some alarming results.

LANSING, Mich. (WXYZ) — The Michigan Marijuana Regulator Agency issued an advisory over vape cartridges that were recalled due to a failed test. According to the ...

New data from a California laboratory show that THC vape cartridges may carry a substantial risk of exposing users to harmful chemicals. And while the test results from analytic laboratory CannaSafe ...

SAN DIEGO (KGTV) – A local marijuana testing lab is releasing vape test results that are alarming. Almost 80% of the cannabis vape cartridges were tested and deemed "unfit for consumption." Tucked ...

State officials in Michigan are encouraging medicinal cannabis retailers to have their vape cartridges tested for heavy metals after lead was detected in some products. In a public health and safety ...