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How Long Does CBD Stay In Your System?

Regardless if you’re a long-term CBD user or you have just begun your CBD journey, you may be wondering — “how long does CBD stay in the body?”

Different methods of CBD administration produce different results. You may feel the effects of CBD quickly after inhalation. But, how long does CBD stick around after the effects wear off?

If you want to take a short break, increase your dose, switch from one method of consumption to another, or are simply curious about what happens to CBD after it enters the body — we provide you with all the answers.

In this article, we’ll cover how CBD is absorbed, metabolized, and excreted. We’ll compare long term CBD use with short term and how this can affect the amount of time CBD remains in your body after the effects have worn off.

So, How Long Does CBD Stay in Your System?

We need more research to get a definitive answer to the amount of time it takes CBD to leave your body. But here’s what we know so far:

CBD won’t be in your system for longer than 7 days after your last use — unless you’re a frequent user of CBD (more than 10 mg per day for several weeks)In this case, CBD may linger for up to two more weeks depending on how often you use it. Find out more

What the Research Says

In a study published in Pharmacology, Biochemistry, and Behavior, 14 patients with Huntington’s disease were given an extremely high dosage of oral CBD (10 mg/kg/day — about 700 mg/day) for six weeks. The study found that the levels of CBD dropped to an average of 1.5 ng/ml one week after discontinuing CBD. Cannabidiol levels were virtually undetectable after about a week [1].

The study found the elimination half-life of CBD was about 2-5 days. There was no difference between genders for the half-life of CBD. This half-life is significantly shorter for people who don’t use CBD regularly.

What Does Half-Life Mean?

The elimination half-life of a drug or compound is a common measurement in medicine to determine the time it takes for 50% of the starting dose of a compound to leave the body.

Each half-life results in proportionally less elimination.

Here’s how the half-life of CBD works — assuming the half-life of 10 mg CBD is 3 hours [2]:

  1. About an hour after taking, CBD reaches peak concentration of 10 mg
  2. After the first half-life (3 hours) there’s only 5 mg of CBD left in the body
  3. After the second half-life (6 hours) only 2.5 mg of CBD is left in the body
  4. After the third half-life (9 hours) only 1.25 mg of CBD is left in the body
  5. After the fourth half-life (12 hours) 0.62 mg of CBD is left in the body

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