What's the Strongest CBD Oil in the UK?

The strongest CBD oil we stock in the United Kingdom contains 2000mg of CBD per 10ml bottle. You can click here to buy it.

In general, high strength CBD is available in many forms including oils, edibles, topicals and cosmetics.

Despite being derived from the cannabis plant family, CBD products do not produce the high associated with tetrahydrocannabinol (THC) consumption. THC levels in CBD products are usually under 0.3% and can be as low as 0% in some products. At CBD Puroil, all products are third-party lab tested to be 0% THC (see lab reports here).

Shop all high strength CBD oil here.

There are potential risks and benefits with high dosage use of CBD.

CBD Puroil - 2000mg

Benefits of High Strength CBD

Most past research into products containing CBD focus on cannabis and THC, and do not cover the use of CBD as a more isolated ingredient. More research is being done, however, into CBD itself and the effects it may or may not have on various conditions. Among these studies and proposed studies are some looking into the ability to predict the effects of strength differences in CBD on those who take it. This is complex, of course, as there are many factors that may affect the studies, including individual size and physiology, diet, age, gender, and other factors.

Read next: How long does CBD take to work?

Buyers should consider the cost benefits of buying higher concentrations of CBD against the recommendation to start with a lower dose and work upwards until the desired effects are felt or until a maximum recommended dosage has been reached. It is also important to note that lower concentrations are easier to measure as errors have less effect, and so final results are therefore more accurate.

You should always stick to the manufacturers dosage recommendatinos, and consult your doctor if you are unsure.

Looking for broad spectrum CBD oil? Click here

Negatives of High Strength CBD

A World Health Organization (WHO) 2018 report indicates that CBD does not seem to cause significant side effects, even when doses exceed 150mg per kg of body weight. However, the Food and Drug Administration (FDA) warns that some side effects actually can occur. These include drowsiness, diarrhoea, gastrointestinal problems, loss of appetite, irritability and mood swings, interactions with alcohol and other drugs, and even liver injury due to certain drug interactions. It is very important to consult with a doctor if you are considering using CBD products, or if you are already using them.

Related: Benefits of Broad Spectrum CBD

Is CBD legal in the UK? Find out here.

Label Accuracy Issues

According to a third-party, 2017 study, lab results have indicated that only 30.95% of CBD products have accurate labelling of CBD concentrations on that packaging. That means that 69.05% of CBD products have inaccurate labels with regard to CBD concentration. The study included 54 CBD products from 31 different companies. The study also indicated that oils had more accurate labelling than tinctures and vaping products. Some products didn’t contain any CBD at all, and others contains sufficient THC to trigger a positive result on a drug test.

The best way to ensure accuracy in what you buy, is to use a seller who provides a third-party lab test verifying the concentrations and ingredients of the CBD products you use - and that's exactly what CBD Puroil does (see our third-party lab tests here).

Related post: Does CBD show on a UK drugs test?


CBD is growing in popularity due to a number of claims users make regarding benefits to health and wellbeing, especially with regard to conditions such as epilepsy, anxiety and other mood disorders, and some forms of chronic pain. Nonetheless, more study is needed to verify and measure the benefits of CBD use, if any, for these purposes.

Related post: Isolate vs Full Spectrum CBD

New users should start at a lower dose and work upward until the desired effects occur, or until maximum recommended dosages are reached. Less concentrated products are easier to measure, and therefore produce a more accurate dosage, but can be more expensive in the long run.

Always discuss CBD use with your doctor, to ensure it is safe to use with any medications you currently take, and to ensure that your doctor is aware of your CBD use in the case of any other health concerns.

Read next: Full spectrum vs Broad spectrum CBD