This story discusses substances that are legal in some places but not in others and is for informational purposes only and not for the purpose of providing legal advice. You shouldn’t do things that are illegal — this story does not endorse or encourage illegal drug use.
How cannabis drug tests work
So you’re in the clear, right? Not quite. There are two ways you could hit that 50 ng/mL mark.
Why CBD might cause you to fail a drug test
Depending on how much CBD (and thus THC), you consume, how often you consume it, your body weight and your diet, it’s possible for THC to accumulate in your body in as little as four to six days and trigger a positive drug test. Research has found that THC can be detectable in your system for up to 30 days, but it’s usually only present in heavy cannabis users after the first week.
When we think of typical cannabis use, we think of smoking a bowl, bong, blunt or joint. Some stoners may also use concentrates such as resin, live budder, water hash, etc. Nowadays, we can also enjoy our cannabis in a plethora of candies, cookies, cakes, and even infused olive oils. Finally, with the arrival of CBD on the scene, products have evolved to include topical cannabis items like body creams, salves, lotions, balms. As the industry continues to change and grow to include new ways to incorporate the cannabis plant, we need to wonder: which of these fascinating new things will get us high and/or, which would show up on a drug test?
The short answer is no. When using topical marijuana products, remember that your skin acts as a barrier between the outside world and the inner workings of your system. Although there is THC, CBD or other cannabinoids in the lotion/cream which is absorbed into your skin, muscles and nerves, it does not reach your bloodstream (and ultimately, your brain, where the psychoactive aspect of THC is caused), so it cannot be detected by a test. Since you’re not consuming the THC orally, there’s no way for it to get into your bloodstream.
The one caution/exception to the topical rule is transdermal patches. These work similarly to nicotine patches, and send the THC/CBD past the skin barrier where it can reach your bloodstream and your brain so you also experience the psychoactive effects. This WILL result in a failed drug test should you take one.