Last updated: October 2026
Delta-8 THC is an intoxicating cannabinoid closely related to delta-9 THC, the main compound in cannabis that makes people high. It’s illegal in the UK: delta-8 is controlled as a Class B drug, the same as cannabis, so UK shops and websites can’t legally sell it. Products sold as “delta-8” are often made synthetically from CBD and may be contaminated.
This guide explains what delta-8 is, the UK law and penalties, the health risks, how it differs from CBD, and newer products such as HHC.
What is delta-8 THC?
Delta-8 tetrahydrocannabinol (delta-8 THC) is a cannabinoid found in tiny amounts in the cannabis plant. Its structure is almost identical to delta-9 THC, differing only in the position of one chemical bond. It acts on the same CB1 receptors in the brain and produces a high, usually described as somewhat milder than delta-9 THC. It became popular in the US because of a loophole in American hemp law, which doesn’t apply in the UK.
Is delta-8 legal in the UK?
No. Under the Misuse of Drugs Act 1971, THC compounds including delta-8 are controlled as Class B drugs, in the same way as delta-9 THC. That means it’s illegal to possess, supply or produce delta-8 products. According to GOV.UK, the maximum penalties for Class B drugs are:
| Offence | Maximum penalty |
|---|---|
| Possession | Up to 5 years in prison, an unlimited fine or both |
| Supply or production | Up to 14 years in prison, an unlimited fine or both |
Driving with THC in your system can also lead to a drug-driving conviction. See CBD and driving in the UK.
Can you buy delta-8 in the UK?
Not legally. Any UK shop or website selling delta-8 vapes, gummies, flower or “hash” is breaking the law, and so is ordering it from abroad. Products may also be mislabelled: something sold as “delta-8” could contain delta-9 THC, synthetic cannabinoids or nothing at all. If you’re looking for a legal, non-intoxicating hemp product, CBD is the alternative.
How delta-8 is made
Hemp contains so little natural delta-8 that almost all delta-8 products are made by chemically converting CBD in a lab. The US Food and Drug Administration warns that this process can use potentially unsafe chemicals, can leave harmful by-products, and is often done in uncontrolled or unsanitary settings. In other words, it’s a semi-synthetic product rather than a natural hemp extract.
Health risks of delta-8
- Intoxication: anxiety, paranoia, confusion, a racing heart, dizziness and impaired coordination, especially with edibles, which take longer to work and are easy to over-consume.
- Children: between January 2021 and February 2022, US poison centres recorded 2,362 delta-8 exposure cases; 41% involved under-18s, many of whom ate products by accident.
- Serious reactions: the FDA received 104 adverse event reports in the same period, with more than half needing emergency care or hospital admission.
- Unknown contents: unregulated vapes and edibles may contain contaminants or synthetic cannabinoids, which can be far stronger and more dangerous.
If someone becomes very unwell after taking a cannabis product, call 999. Talk to FRANK (0300 123 6600) offers free, confidential advice about drugs.
Delta-8 vs delta-9 THC vs CBD
| Delta-8 THC | Delta-9 THC | CBD | |
|---|---|---|---|
| Gets you high? | Yes, usually milder | Yes | No |
| UK legal status | Class B controlled drug | Class B controlled drug | Legal as a food supplement if THC-free and on the FSA public list |
| How it’s made | Mostly converted from CBD in a lab | Natural in cannabis | Extracted from hemp |
| Shows on drug tests? | Likely, as THC | Yes | No (if THC-free) |
Read more: CBD vs THC, can CBD get you high? and is CBD legal in the UK?
What about HHC and other “legal highs”?
As THC variants were banned, sellers moved on to other semi-synthetic cannabinoids such as HHC (hexahydrocannabinol), sold in vapes and sweets. The government’s drug advisers recommended in 2025 that HHC and related compounds be controlled as Class B, and the government accepted the advice. Psychoactive products that aren’t yet named in the law are generally caught by the Psychoactive Substances Act 2016, which makes supplying them illegal. Whatever the label says, if a cannabis product is sold for its high, assume it’s illegal and unregulated.
Delta-8 and drug tests
Standard drug tests look for THC breakdown products, and delta-8 is likely to produce a positive result. THC-free broad spectrum CBD doesn’t contain THC. See does CBD show up on a drug test?
FAQs
Is delta-8 legal in the UK?
No. Delta-8 THC is controlled as a Class B drug under the Misuse of Drugs Act 1971, so possessing, selling or producing it is illegal.
Can you buy delta-8 vapes in the UK?
Not legally. Any UK seller offering delta-8 vapes is breaking the law, and the contents of unregulated vapes are unknown.
Is delta-8 the same as CBD?
No. Delta-8 is an intoxicating form of THC and is illegal in the UK. CBD doesn’t get you high and is legal when THC-free.
Does delta-8 get you high?
Yes. It acts on the same brain receptors as delta-9 THC and produces a high, usually described as milder.
Is delta-8 natural?
It occurs naturally only in tiny amounts. Almost all delta-8 products are made by chemically converting CBD, sometimes with unsafe chemicals.
Is HHC legal in the UK?
The government has accepted advice to make HHC a Class B drug, and supplying psychoactive substances is already illegal under the Psychoactive Substances Act 2016.
Will delta-8 show up on a drug test?
Very likely. Drug tests detect THC breakdown products, which delta-8 produces.
Sources
- GOV.UK. Drugs penalties.
- Advisory Council on the Misuse of Drugs (2025). Semi-synthetic cannabinoids related to tetrahydrocannabinol and cannabidiol.
- US Food and Drug Administration. 5 things to know about delta-8 tetrahydrocannabinol.
- Home Office. Drug licensing factsheet: cannabis, CBD and other cannabinoids.
- Talk to FRANK. Honest information about drugs.
This guide is general information, not legal or medical advice. Evopure sells THC-free CBD only.
