CBD vs THC UK: What’s the Difference and Can CBD Get You High?

CBD and THC are both cannabinoids associated with the cannabis plant, but they are not interchangeable.

The simplest distinction is this: THC is intoxicating and is responsible for the “high” associated with cannabis. CBD does not produce that THC-style high. The World Health Organization’s expert review of preparations considered to be pure CBD found no psychoactive properties and no evidence of abuse or dependence potential. Read the WHO review.

That distinction matters if you are considering a CBD product but are concerned about intoxication, THC or the connection with cannabis.

Can CBD get you high?

Pure CBD is not the cannabinoid responsible for the cannabis high. THC is.

That does not mean every product carrying the word “CBD” should automatically be treated as identical. A finished product may contain CBD alongside other cannabinoids, depending on how it was manufactured.

That is why the lab report matters just as much as the wording on the front of the bottle.

CBD and THC are treated differently under UK law

Pure CBD, as an isolated substance, is not controlled under the Misuse of Drugs Act 1971. THC and a number of other cannabinoids are controlled substances. The legal position of a finished CBD product therefore depends partly on what else the product contains. Read the Home Office drug-licensing factsheet.

You may still see websites claiming that a CBD product is legal provided it contains “less than 0.2% THC”.

That is misleading in the context of finished CBD oils.

The Home Office uses the 0.2% figure in relation to approved low-THC cannabis varieties that may be cultivated under the industrial-hemp licensing regime. It is not a general 0.2% THC allowance for a bottle of CBD oil. Read the industrial-hemp licensing factsheet.

For products containing controlled cannabinoids, the Home Office instead sets out the requirements of the exempt-product definition. All parts of that definition have to be satisfied. One condition concerns a maximum of one milligram of an individual controlled drug in a component part, with the Home Office treating a bottle as the relevant component part for an oil. It should not be reduced to the marketing claim “1mg of THC is legal”.

CBD foods are also subject to separate food-law requirements. In England and Wales, the Food Standards Agency maintains a register of CBD products linked to novel-food applications and explains which products may remain on the market while applications are considered. View the FSA CBD product list.

What does CBD isolate mean?

CBD isolate is a highly purified form of cannabidiol rather than a mixture deliberately containing the wider range of cannabinoids associated with full-spectrum products.

However, the sensible way to assess any CBD ingredient or finished product is still to look at appropriate laboratory evidence rather than relying solely on words such as “isolate”, “THC-free” or “zero THC”.

A useful lab report should identify what was tested, which cannabinoids were analysed and the laboratory’s reporting or quantification limits. Our COA buyer guide explains what to look for and why an ingredient certificate should not automatically be treated as a finished-product potency test.

What about full-spectrum and broad-spectrum CBD?

These descriptions refer to different cannabinoid profiles rather than different strengths.

A full-spectrum product is intended to retain a broader mixture of compounds from the cannabis plant and may contain controlled cannabinoids at trace levels. Broad-spectrum products are generally formulated to retain several cannabinoids while reducing or removing THC.

CBD isolate takes a different approach by using predominantly purified CBD.

For a more detailed comparison, see our Full Spectrum vs Broad Spectrum vs CBD Isolate UK guide.

Can CBD show up on a drug test?

Drug testing involves the compounds and metabolites being tested for, the composition of the product and the sensitivity of the test. A product label alone cannot guarantee a particular drug-test result.

We cover this separately in our Will CBD Show Up on a Drug Test UK? guide so this page does not duplicate that search intent.

How does CBD make you feel?

“Will CBD get me high?” and “What does CBD actually feel like?” are related questions, but they are not identical.

This guide is focused on the difference between CBD and THC. For the broader experience question, see How Does CBD Oil Make You Feel?.

How can you check what is actually in a CBD product?

Look beyond the front label.

Check whether the seller explains the type of CBD being used, whether a relevant laboratory report is available, what sample the report actually covers and whether controlled cannabinoids were included in the analysis.

A report for a raw CBD ingredient should not automatically be presented as though it were a potency test of every finished bottle made from that ingredient.

CBD vs THC: the important takeaway

CBD and THC come from the same plant family, but the similarities should not be exaggerated.

THC is the principal cannabinoid associated with cannabis intoxication. Pure CBD does not produce the same high and is not itself controlled under UK drugs legislation.

For consumers, the important question is therefore not simply whether a bottle says “CBD”. It is what type of CBD product it is, what other cannabinoids are present and what the laboratory evidence actually demonstrates.

That gives people a much clearer answer than blanket claims such as “0% THC”, “completely safe” or “legal because it is under 0.2%”.