If the product contains no THC, you cannot fail a drug test due to CBD alone. Some CBD products do not contain any THC – these are known as CBD Isolate or Broad Spectrum CBD. That said, full spectrum CBD products contain trace amounts of THC. Legally, retail stores are not allowed to sell CBD products that contain more than 0.3% THC. This legal amount of CBD is too low to cause anyone to have psychoactive effects or cause anyone to fail a drug test from normal use. In fact, CBDMEDIC products are not transdermal, meaning they do not enter the bloodsteam. Therefore, you do not have to worry.