Does Delta-8 Show Up on a Drug Test?

The lowdown on delta-8 and your upcoming drug test. You could be waiting up to 90 days, or longer.

Using delta-8 flower product before drug test
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Over the past year or two, delta-8 THC has grown exponentially because it’s seen as a federally legal alternative to delta-9 THC, able to cause a gentler euphoric high. With the mass influx of users turning their attention to delta-8, the question on everybody’s lips is “does delta-8 show up on a drug test?” and “how long does delta-8 stay in your system?”


  • Delta-8 THC and its metabolites will show up on a drug test the same way as delta-9. 
  • Drug tests are not advanced enough to differentiate between each type of THC — they simply detect all THCs and their metabolites.
  • Several factors affect delta-8 detection in your system e.g. type of test, frequency of use, etc. 
  • Cannabis detox methods do not work — nothing can flush delta-8 out of your system apart from time and patience.

Delta-8 THC shows positive on a drug test

Will delta-8 THC make you fail a drug test?

Delta-8 THC can show up on a drug test the same way as delta-9-THC because delta-8 and delta-9 are almost identical on a molecular level and drug tests aren’t quite as sophisticated as you may think. Delta-8 products can also wrongfully carry more than the federally legal limit of 0.3% delta-9, largely caused by careless manufacturing and production processes. Our report shows some delta-8 products are up to 7700% over the legal delta-9 limit. This percentage is enough for you to fail a drug test.

The blanket detection of THC and its metabolites 

Failed drug test warning on delta-8 THC product label
Many delta-8 product labels warn consumers that the product “may result in a failed drug test”. Photo: CBD Oracle

When you consume any form of THC (delta-8 or delta-9), your digestive system metabolizes them via a special group of liver enzymes known as the P450 system. 

During the metabolization process, THC and its variants get broken down into unique metabolites. These metabolites are what drug tests search for. 

Unfortunately, drug tests often fail to differentiate between each THC metabolite. If you consume either a delta-8 or delta-9 product, a drug test won’t recognize which one you’ve actually taken. 

Illegal delta-9 content in delta-8 products is a concern

We recently had 51 delta-8 products tested by accredited, independent laboratories specializing in cannabis analysis at CBD Oracle. The results are shocking. 

Illegal delta-9 THC in Delta-8 THC products

76% of delta-8 products carry over the legal 0.3% delta-9 limit set out by the Agriculture Improvement Act (2018 Farm Bill). One particular delta-8 product even reaches 23% delta-9, which is 7700% over the legal limit. Brick-and-mortar stores such as gas stations and smoke shops stock delta-8 products with higher delta-9 levels, while established online delta-8 stores have lower delta-9 levels in their products.

Consuming delta-8 products carrying over the 0.3% delta-9 THC limit will cause a failed drug test.

How long does delta-8 stay in your system?

Consuming various types of delta-8 product before a drug test
Consuming any type of delta-8 product including flower, gummies, and vapes will make you fail a drug test. Photo: Brianna Wheeler/CBD Oracle

Delta-8 is detectable in your system for longer than you think. As a general rule of thumb, you should expect delta-8 to stay in your system for the following lengths of time:

Test TypeLength of Time Delta-8 is Detectable*
Hair Up to 90 days
Urine3-77 days
BloodUp to one week
Sweat Up to one week
Saliva24 hours to one week 
*The length of time provided for each test type is approximated and may vary slightly depending on the amount of delta 8 you have been consuming.

There’s a common misconception that delta-8 and other THC variants leave your body within a week or two. This isn’t true. They actually stick around for a lot longer than you’d expect. Why? It’s all to do with how your body stores and expels all cannabis compounds. 

Your body excretes roughly 50-80% of delta-8 and all other cannabinoids through feces and urine within the first week, specifically around the 4-5 day mark. The rest builds up in your fatty tissue and hair follicles for up to 90 days, though this is simply an estimate. 

Factors affecting the length of time delta-8 THC is detectable in your system

Delta-8 THC vape cartridge being tested at a lab
Delta 8 is generally detectable in your system for up to 90 days.

There are a number of factors determining how long delta-8 THC is detectable in your system, including:

  • Frequency of delta-8 use
  • Delivery method (edibles, vaping) 
  • Type of drug test 
  • Metabolism 
  • Body fat percentage 
  • Food intake before consumption 
  • Water intake after consumption 
  • Enzyme efficiency 

All these factors combined make it almost impossible to predict the length of time delta-8 and its metabolites remain detectable in your system. It’s really a “how long is a piece of string” situation. 

First time delta-8 users vs. chronic delta-8 users

Smoking a delta 8 pre-roll
If you’ve just started using delta 8, it may be detectable in your body for up to a week.

If you’re a first-time delta-8 user, the likelihood of failing a drug test is low. Your body will most-likely eliminate or expel delta-8 before it has a chance to soak into your system. Expect delta-8 to be detectable in your body for up to a week. 

If you’re a chronic user, expect to fail a drug test for 90 days after your last dose of delta-8; however, there are some chronic users with high delta-8 tolerance who can pass a drug test in a much shorter time. 

RELATED: What are the best delta 8 products available to buy online?

Considering a weed detox? Not so fast!

In a desperate attempt to pass a drug test, cannabis users rely heavily on several detox methods. These methods are often marketed as quick-fix solutions to help rid or cleanse your body of cannabis compounds, namely THC and its family of variants. 

Common weed detox methods include: 

  • Cranberry juice 
  • Green tea
  • Goldenseal herb
  • Short-term exercise
  • Overhydration 
  • Synthetic urine
  • Mouthwash 
  • Baking soda
  • Bleach 
  • Detox kits

Unfortunately, none of these methods can “detox” or cleanse cannabis out of your system, no matter how much you want them to. Some can be hazardous and even dangerous to your health. 

Why cannabis detoxing isn’t a real thing 

Cannabis detoxing is a nice idea in theory but borderline useless in practice. 

Delta-8, delta-9, and all other cannabinoids are fat-soluble. They store themselves securely in your fatty tissue. No detox remedy can flush, rinse, rid, or excavate these cannabinoids out of the fatty tissue. 

Short of physically removing the fat cells out of your body, the only viable “detox” solution is a combination of time, patience, and staying healthy through a good diet and regular exercise. 

RELATED: Where is delta 8 legal, and why are some states trying to ban it?

Delta-8 is an amazing cannabinoid but don’t use it before a drug test 

Delta-8 THC is a really beneficial cannabinoid. It’s federally legal, produces a milder high, and suits both casual and experienced users alike. However, consuming a milder THC variant doesn’t mean it won’t show up on a drug test. Delta-8 is still almost identical to delta-9 and drug tests will pick up on its metabolites. Our advice? Enjoy delta-8 and all it has to offer, but don’t rely on it as a substitute for delta-9, especially if you’re looking to avoid failing a drug test.