Cannabidiol, known in the wellness world as CBD, has skyrocketed in popularity and was made legal in the UK in 2018. Whether you’re an experienced user or considering incorporating CBD products into your routine for the first time, you may be wondering, “How long does CBD stay in your system?” Understanding this can help you understand how CBD oil, cream, CBD edibles or CBD capsules interact with other substances and how to make informed decisions about timing and dosage.
How Long Does CBD Stay in Your System?
The length of time a CBD product will stay in your system varies from person to person. In most cases, CBD can be detected for between a few hours to a few weeks after use. This wide range is because of several factors that determine how your body processes and eliminates CBD.
Half-Life of CBD
The half-life of a substance is the time it takes for its concentration to reduce by half in the body. In CBD, this can range from 18 to 32 hours when taken orally. However, this can vary based on the method of consumption, dosage, and individual metabolic factors.
The elimination half-life of a substance is the time it takes for its concentration to reduce by half in the body. When you take CBD orally, its half-life lasts from 18 to 32 hours.
Duration in Different Biological Systems
- Blood: CBD can usually be detected in the blood for up to a week, but can be detected for longer in the blood of frequent or heavy users.
- Urine: Because the law considers CBD legal, most drug tests do not screen for it. However, if tested, you may see a positive test result in urine for up to two weeks.
- Saliva: CBD can usually be detected in saliva for up to 72 hours.
- Hair: Hair tests are uncommon but can detect CBD for around three months.
How Long Does It Take for Effects to Start?
The onset of CBD effects can vary depending on how it is consumed:
- Inhalation (Vaping/Smoking): Effects can be felt within minutes and last 2-4 hours.
- Sublingual (Tinctures/Oils): Effects typically start within 15-30 minutes and can last 4-6 hours.
- Oral (CBD gummies/Edibles/Capsules): Effects might take 30 minutes to 2 hours to begin, and last 6-8 hours.
- Topical (Creams/Balms): Effects can start within 15-45 minutes and can last up to 6 hours.
What Affects How Long CBD Will Stay in Your System?
Several factors can impact how long CBD stays in your system:
Dosage
A high dose of CBD will usually take longer for your body to process and eliminate.
Frequency of Use
Because CBD is fat soluble, CBD taken regularly will accumulate in the body’s fat cells where it releases slowly into the blood and can be detected for longer.
Method of Consumption
How you consume CBD affects how long CBD remains in your body and how it is metabolised. For example, vaping CBD will have a faster onset and shorter duration compared to consuming it orally.
Metabolism
Your metabolism and digestive system significantly impact how fast your body processes CBD. People with faster metabolisms will eliminate CBD more quickly than those with slower metabolisms.
Body Composition
Factors like body mass index, body weight, body fat percentage, and overall health can affect the length of time CBD stays in your system. CBD is lipophilic, meaning it is stored in fat cells, so people with higher body fat may retain CBD for a long period.
Diet
The food you eat can influence how long CBD stays in your system. Taking CBD with a full stomach can slow down absorption and elimination, while an empty stomach can lead to faster absorption.
Does CBD Show Up on a Drug Test?
Drug tests are usually designed to detect THC (tetrahydrocannabinol), the psychoactive compound in the cannabis plant, and not CBD. However, full-spectrum CBD products contain trace amounts of THC metabolites (up to 0.3%), which could potentially show up on a drug test, especially with prolonged use.
Types of Drug Tests
- Urine Tests: A urine test is the most common type of drug testing, and is designed to detect THC. While full-spectrum CBD can yield a positive result, most pure CBD products won’t be detected.
- Blood Tests: This kind of test is less common and usually used in specific situations, like workplace accidents. These tests are more effective at detecting recent use rather than regular usage.
- Saliva Tests: Saliva is rarely used for CBD or THC detection because it has a short detection window.
- Hair Tests: Hair is not usually used for CBD or THC detection, but can be used to detect drugs for up to 90 days.
Minimising Risk
To minimise the risk of a positive drug test, consider choosing broad-spectrum CBD products or CBD isolate product, which are THC free. Always purchase CBD products from reputable suppliers who provide third-party lab testing to ensure the product is pure and safe.
Conclusion
Understanding the effects of CBD and how long CBD stays in your system is important for deciding how much CBD you consume, your preferred method, and when to consume it. While the duration varies based on multiple factors like dosage, frequency, and individual metabolism, it’s usually detectable for a few hours to a few weeks.
CBD can be effective for relieving pain and promoting relaxation and has several other potential health benefits. Being able to estimate the onset time and duration of the effects of CBD can help you plan your usage effectively, ensuring you get the most out of your experience. While CBD is unlikely to show up on a typical drug test, it’s always smart to choose products carefully and consider your specific needs and circumstances.
