There are several common reasons a person fails a CBD drug test.
The primary difference between hemp and marijuana is that hemp is nearly void of THC. In fact, a cannabis strain must contain less than .3 percent THC to be classified as hemp. This is the reason hemp can be legally sold as various products.
CBD oil extracted from hemp is not supposed to have any more than .3 percent of THC. However, it’s not uncommon for sellers to mislabel their products as THC-free hemp when in reality, it’s a low-quality oil extracted from marijuana, which does contain THC.
2. Cross Contamination of THC
For instance, if someone who had direct contact with marijuana then touched your hair, you could feasibly receive a false positive on a drug screening that tests your hair.
Most CBD products are made from hemp, not marijuana.
If you take CBD oil, there are measures you can take to try to prevent failing a drug test.
What are the odds that CBD oil users will test positive when subjected to illicit drug screenings, and what can be done to prevent it?
CBD is a non-intoxicating cannabinoid found in cannabis. Photo by: Gina Coleman/Weedmaps
Recognized as the preferred method for cannabis drug testing, urine screenings are often used as a benchmark to detect for cannabis use. Most urine tests utilize a specific sensitivity for the cutoff concentration of THC-COOH. The most common cutoff concentration point is 50 nanograms per milliliter (ng/mL), as suggested by the Substance Abuse and Mental Health Services Administration (SAMHSA).
In most cases, it’s highly unlikely that CBD will show up on a drug test. Usually employment drug tests look for the presence of THC or THC metabolites. Most employers abide by the guidelines set forth by the Substance Abuse and Mental Health Services (SAMHSA), which includes detection for THC but not CBD. Tests generally look for THC but how much and how long THC sticks around depends on what’s being tested.
If you’re vaping or dabbing your CBD, it’s the same advice as above — look for concentrates made with isolate or crystalline to avoid THC completely. (If you smoke or vape flower, you’ll be consuming whatever level of THC is present in the bud, which is at least 0.3% even for hemp plants.)
Although hemp-derived CBD products are available in states where recreational cannabis isn’t legal, some people might worry whether CBD will show up on a drug test. It’s a valid concern considering that even CBD products derived from hemp are legally permitted to contain traces of THC, 0.3% or less to be exact. And even in states where it is legal to buy THC-heavy cannabis from a retail store, some employers still screen employees for cannabis use. This may leave some consumers wondering whether there’s a small amount of THC in their CBD — and whether that will show up on a drug test.