What is THCB?

THCB is a cannabinoid that is similar to THC in its effects, meaning that it can make users 'high' or, more correctly, intoxicated. Both THCB and THC are natural substances derived from the cannabis plant. You could say that THCB is a cousin of THC, as the effects are similar, but there are important differences: legality and chemical structure. THC is illegal in Sweden, while THCB is legal and can be used freely in the country.

THCB also differs from THC in its chemical structure (molecular makeup), which means that THCB is often perceived as stronger than THC. Although THCB has a shorter side chain than THC, the molecular structure of THCB may fit better in the binding pocket of the CB1 receptor, making it more potent.

Does THCB get me high?

Yes, THCB can give you an intoxicating effect, similar to classic cannabis where you feel 'high'. THCB can be stronger than classic cannabis where THC is the main component. Therefore, you should test it gradually to find the dose that suits you best.

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Is THCB legal?

THCB is currently (in 2025) legal to buy and use in the UK, provided that your THCB product is THC-free and grown under legal conditions in the EU. The question most often asked is how THCB can be legal if it is derived from cannabis and creates the same 'high' (intoxicating) effect as THC. The answer is that each substance is classified based on its chemical structure and effects. This means that each substance is classified individually.

How is THCB used?

You can use THCB in different ways, depending on your preference. For example, there is THCB Vape, THCB Candy, THCB Shots and also THCB Snus. All these products contain THCB and provide an effect of THCB. What distinguishes them is mainly how long the effect lasts and how quickly the effects take effect. Below you can read a short description of the products.

THCB Vape: Provides a quick effect, usually within 15 minutes, and lasts up to 2 hours, depending on individual factors.

THCB Candies: May take longer to feel the effect, usually within 1-2 hours, while the effects may last for 4-6 hours, depending on individual factors.

THCB Shots: Gives an almost immediate effect, within 5-10 minutes, and lasts for up to 3 hours.

THCB Snus: A discreet and flexible option that takes effect within 5-10 minutes and can last up to 1-3 hours.

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Is it safe to use THCB?

THCB is a relatively newly discovered substance, compared to CBD or THC. Even though THCB naturally occurring in cannabis, just like CBD and THC, there are no long-term studies yet. The most important thing to consider if you want to test THCB is that your product is legal and natural, meaning it is not synthetically produced. This way, you can feel safe knowing that you are using something natural and not chemically produced.

What are the side effects of THCB?

As with all substitutes, substances and products, some side effects may occur. Some products may cause more side effects than others. THCB is a natural substance from the cannabis plant and can cause some side effects if you use more than you can tolerate. It is therefore a good idea to start with a low dose and gradually increase to get used to it. Common side effects that can occur with high use of THCB are nausea, dizziness, dry mouth, stomach pain and headache. Side effects are classified as mild and harmless, but can be experienced as unpleasant. It is also important to remember not to combine prescription medications with cannabinoids, including THCB. This is because both substances can have blood-thinning properties, which can amplify some side effects.

Side effects can last up to 2-10 hours, depending on how much you used and your individual sensitivity. If you want to get rid of the side effects as quickly as possible, it may be a good idea to eat something sweet and drink plenty of water.