CBD sprays and drops have a half-life of 1.4 to 10.9 hours. Chronic oral consumption of CBD products can increase its half-life to 2 to 5 days, while CBD typically has a half-life of 31 hours if a person smokes it.
This means that CBD sprays can stay in the body for 10 hours to about 2 days, chronic oral consumption can mean CBD stays in the system for 10 to 25 days, and CBD can stay in the system for about a week after smoking.
There are a few variables to consider when thinking about how long CBD stays in your system.
How much you use
As with most other substances, the higher the dose you take, the longer CBD will stay in your system.
How often you use it
The frequency of your usage also determines how long CBD stays in your body. CBD builds up in your body over time if used regularly. This is why you should use it for at least a week to see if it works for you.
If you use it only occasionally, it’ll clear from your system faster.
Everyone’s body is different. That’s why CBD and other substances affect people differently.
Your body mass index, water content, and metabolism are only some of the things that can influence how long CBD stays in your system.
What you eat, how much you eat, and when you eat matter. After eating, it takes longer for CBD to reach peak concentration in the blood, and when it does, it’s typically higher than in those who take it on an empty stomach. The body also eliminates CBD slower when fed rather than during fasting states. Fasting is when a person does not eat for a certain period.
Method of use
There are a few ways to take CBD. The method you use affects the onset and duration of effects and how long it stays in your body.
When you vape CBD (which you should avoid for now), it enters your lungs and takes effect quickly, and also leaves the body quickly. Oils and tinctures placed under your tongue are absorbed into the bloodstream faster and linger longer.
Your digestive system metabolizes edible forms of CBD, which can take a while. Creams and lotions are also slow to get into and out of the body.
People should not use CBD when breastfeeding or chestfeeding. If you plan on nursing in the future, avoid using CBD for at least 1 week beforehand.
The Food and Drug Administration (FDA) strongly advises against it because of the lack of comprehensive research on the effects of CBD on chestfed babies. So far, some CBD can transfer to babies through breast milk.
CBD products can also contain THC and other substances that pose risks to a breastfed baby. Research is ongoing, but until experts know more, it’s best to avoid using CBD while pregnant or breastfeeding.
It’s hard to say exactly how long CBD stays in your system because there are so many factors involved. Plus, different bodies can have very different responses to CBD.
Is CBD legal? The 2018 Farm Bill removed hemp from the legal definition of marijuana in the Controlled Substances Act. This made some hemp-derived CBD products with less than 0.3% THC legal at the federal level. However, CBD products containing more than 0.3% THC still fall under the legal definition of marijuana, making them illegal at the federal level. Some states have legalized CBD, so be sure to check state laws, especially when traveling. Also, keep in mind that the FDA has not approved nonprescription CBD products, and some products may be inaccurately labeled.
Last medically reviewed on June 20, 2022
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