When buying cannabidiol products, it’s not really the CBD that you want, it’s the results! Everyone who buys CBD products has their own reason behind the purchase. Some people want to improve their general wellbeing and others are looking for a specific outcome.

Whatever the reason for your purchase, you can increase the chance of achieving the result you want by selecting a high-strength oil. The most potent products give you more options and have been linked to a wider range of benefits.

To help you get results, we have carefully chosen a list of the strongest oils, pastes, balms and e-liquids available in the UK. Each one has had to meet our strict criteria and come from a trusted and transparent supplier. Where as there will be some that may be stronger or equal to those below. We have not yet been able to validate claims or try the product ourselves. Here we give you all the information you need to make your own informed choice.

Why Choose Strong CBD Products?

High strength CBD products can provide a wider range of benefits than the weaker ones. With a strong item you can choose between a large serving or diluting a small amount to create a micro dose. The versatility of these products makes them the best buys and the most sought-after products available.

1. More Cost Effective

When you purchase a strong CBD product you will have to spend more. However, in the long run, you are often getting a far better deal because they contain more of the active ingredient. By buying a large amount of CBD in one single purchase it is cheaper than if you buy the same amount in several low strength bottles.

2. Smaller Servings For Greater Effect

Once you have a strong CBD product you only need to take a very small amount to get the same effect as a large volume of a weaker item. This is great if you are not keen on the taste or want to add it to a meal without giving your food an oily flavour.

3. Larger Amounts For Health Benefits

Many of the studies that have linked the use of CBD to specific health and medical benefits use daily amounts of between 100mg and 900mg. While it would not be a good idea to try and copy this, a higher strength oil has more chance of providing the result you want.

Why You Need This List!

It is important to get a high-quality product that contains exactly what it says on the label. Recent research commissioned by the Centre for Medical Cannabis selected thirty well known CBD oils from online and high street stores. 62% of the products tested didn’t match their labels and one contained no CBD at all.

Quality products from suppliers that have been verified by official industry authorities will be transparent about their farming and manufacturing processes. By choosing them you can be confident that you are buying toxin free products with the expected concentration.

Using our selection will give you a shortcut to the strongest products that you can trust.

The Herb Reviews Selection Criteria

To make sure that we have only chosen the best, most reliable brands and products, we have developed a rigorous selection process. While our choices come from years of industry experience, our guiding criteria is built around three key points:

Certificates of analysis- These are detailed reports provided by third party labs. They show the actual amounts of cannabinoids and other substances found in the product. They are completed for each batch and should be made available to the customer.

We have only included products with lab reports that verify the safety and accuracy of the latest batch.

Full-spectrum- Full-spectrum CBD products are those that contain other cannabinoids, terpenes or flavonoids alongside the cannabidiol. The presence of small amounts of other substances has been found to interact with receptors in your nervous system altering and enhancing the effect of CBD.

Potency- Although we have chosen the strongest products, we also want them to be potent. This doesn’t just mean a high concentration of CBD. Preparation methods, the hemp strains used, and other ingredients can also enhance the overall effect of each product. We chose the strongest products that provide the biggest results.

The Strongest UK CBD Oils

Oils are the most versatile CBD product. They can be applied in drops, sprayed under your tongue (sublingually), added to food or mixed into your own topical creams and balms. Those that contain concentrations greater than 25% CBD are considered strong but the strongest can reach 40% or more.

1. Synerva 40% CBD Oil

Synerva CBD Logo
Synerva 40% CBD Oil
How Good is Synerva?
This full-spectrum organic oil contains 4000mg of CBD in 10ml. It is infused in a hempseed carrier oil. The bottle comes with a dropper to place the oil under your tongue. Each drop contains 20mg CBD Oil and the bottle contains 200 drops.

It is sold in the UK by Synerva and is manufactured from high cannabinoid strains of medical hemp. The certificates of analysis are clearly displayed on the product page and they show no detectable levels of THC. One bottle will cost you £195.95 making it one of the best value high strength oils in the UK.

This is a non-GMO and pesticide free oil which still contains all the cannabinoids and terpenes. The cannabinoid content includes CBC and CBG while the terpene profile includes traces of 27 different terpenes.

Pros
Great Value
Full-spectrum
Good Terpene profile
Certificate of analysis on site
Synerva receive 5 stars on Trust Pilot
Cons
Intense bitter flavour

2. Love Hemp 40% CBD Oil

Love Hemp Logo
40% Love Hemp CBD Oil
How Good Is It?
This high-strength 40% oil from Love Hemp is made using whole plant extract and contains 4000mg of cannabidiol. It comes in a bottle with a dropper and you can request added peppermint extract to enhance the flavour. It is an organic oil manufactured using cold pressed and supercritical C02 extracted hemp.

Love Hemp are a respected British CBD company who source their hemp from Colorado. Certificates of analysis are present and show no detectable levels of THC. Because of the high concentration this is a very thick oil, normally it is the consistency of runny honey but in some conditions it can crystallise. If this happens hold the base of the bottle in warm water until the crystals disappear.

This is an expensive oil at £269.99 but it maintains its value because of its potency and quality.

Pros
Organic
Highly potent
Can be flavoured
Certificate of analysis available
Cons
Thick viscous oil
High cost
Available at for the Ageless

3. CannabiGold Intense 30% CBD Oil

CannabiGold Logo
30% CBD Oil by CannabiGold
How Good Is It?
This premium amber coloured oil contains 3000mg of CBD in 10ml. It comes in a spray bottle that delivers approximately 100 pumps, with each pump delivering 30mg of CBD. The spray allows for easier application as it can be aimed under your tongue to take it sublingually. It is priced at £219.90.

Unlike many high strength oils this one has a pleasant nutty flavour instead of the intense bitterness that often comes with strong full-spectrum oils. The certificates of analysis show a full range of cannabinoids including CBDV, CBC and CBG. The terpene β-caryophyllene is also present.

Cannabigold conducted over 3000 experiments to formulate the perfect extraction method. The advanced CO2 extraction is entirely solvent free and can remove the extract at low temperatures. They are constantly researching and developing new products and methods to ensure that their oils are always top quality and at the industry’s cutting edge.

Pros
Pleasant nutty flavour
Full-spectrum
Spray bottle
Certificates of analysis available
Cons
Price
Available at for the Ageless

4. Biopurus 30% CBD Oil

Biopurus Logo
30% CBD Oil by Biopurus
Who Good Is It?
This dark oil is made with whole plant extract including 3000mg of CBD in 10ml. It comes in a bottle with a dropper and provides approximately 200 drops containing 15mg of CBD each. It is made from a raw, cold pressed extract which gives it a thick consistency and strong grassy taste.

A bottle will cost you £219.90. It contains a full-spectrum of cannabinoids, terpenes, flavonoids, chlorophyll, lipids, plant nutrients and proteins. The presence of these will alter and enhance the effect of the CBD make it a particularly potent oil.

The certificates of analysis show no toxins or heavy metals and match the amounts on the label. Biopurus produce oil that is certified organic and produced on Czech farms. The oil is then manufactured in Ashford, UK. They are experienced in producing top quality organic oils and also have their own varieties of hemp tea.

Pros
Whole plant extract
Terpenes to enhance effects
Highly potent
Cons
Strong grassy taste
Available at for the Ageless

Our UK CBD oil recommendations can be found here: Best UK CBD Oils

Strongest CBD E-liquid UK

Vaping is a great way to take CBD because 56% of it can reach your bloodstream to be used in your body. When you place CBD drops under your tongue between 12% and 35% reaches your bloodstream. This means that vaping is one of the most efficient and cost-effective ways to take CBD.

Also, because they are highly effective at lower doses, there are very few high strength e-liquids available. To get around this you can boost the concentration of cannabinoids with an e-liquid additive.

PharmaHemp Premium Black 5% CBD Vape Oil

PharmaHemp Logo
5% PharmaHemp Vape Juice
How Good Is It?
With 500mg of CBD in 10ml this is one of the strongest e-liquids available in the UK. It is particularly potent because it is made with full-spectrum extract. The majority of UK CBD e-liquids are made from CBD isolate crystals so don’t have the benefit of the entourage effect that is provided by the other natural plant chemicals.

These come in a range of 9 flavours including green apple, menthol blue and cannabis. One bottle will cost you £26.50. You can immediately tell the difference between this extract and others. It’s syrupy and thicker than most vape juices with a more intense flavour when inhaled.

While there are stronger e-liquids out there, they are not the same quality or as potent as those in the PharmaHemp black range. PharmaHemp have been around for nearly a decade and have used their experience and detailed research to create techniques that enhance potency and preserve the best active components of the hemp plant.

Pros
Certificates of analysis
9 flavours
Potent
Full-spectrum
Premium Quality
Cons
Thick e-liquid
Buy at PharmaHemp

Love Hemp CBD Vape Additive

Love Hemp Logo
Love Hemp CBD Vape Additive
How Good Is It?
This is a concentrated vape juice with 750mg of CBD in 15mls. Each drop contains 2mg so it is a great way of adding extra strength directly to your vape tank. Because it is of a similar strength to the Pharmahemp black range it is best to use it to boost the potency of weaker oils. This is an organic additive and will cost you £59.99.
Pros
Easy to use
Certificate of analysis
Organic
Cons
Concentration could be higher

Strongest CBD Balm

Balms are applied directly to the source of irritation so aren’t in danger of being broken down by your digestive system. This means that they don’t need to be as concentrated to provide high strength effects. In topical balms the CBD is often combined with oils and waxes to give an easily applied texture and to boost the scent and benefits.

1. Love CBD Balm XL

Love CBD Logo
Love CBD 1000mg Balm
How Good Is It?
This is a super-size tub of the Love CBD balm containing 1000mg of cannabidiol in 100g. It’s great for your whole body, including your face, and contains only natural ingredients. It has a high level of CBD and CBDa, smells great and is easy to apply.

Love CBD have provided the certificates of analysis and one tub will cost you £59.99. Because of the 1000mg CBD and the premium ingredients, such as Coconut Oil, Shea Butter and Rosemary, it is great value.

Pros
Large jar
Natural ingredients
Certificates of analysis
Cons
Narrow spectrum of cannabinoids
15% Love CBD Coupon Code: Herb15

2. PharmaHemp 900mg CBD Balm

PharmaHemp Logo
PharmaHemp Strong CBD Balm
How Good Is It?
This is a stronger balm than the Love CBD product with 900mg in only 30mls. PharmaHemp have produced a very potent full-spectrum balm containing a full range of cannabinoids including CBDV, CBDA and CBG. It contains natural organic ingredients such as Coconut Oil, Madagascan Vanilla and Rosemary Essence.

PharmaHemp balm has been specially formulated to reduce itchiness and irritation as well as nourish and protect your skin. It is free of toxins and heavy metals and the certificates of analysis are available on the sales site.

Pros
High concentration
Natural ingredients
Certificates of analysis
Full-spectrum
Cons
Greasy to apply
Buy at PharmaHemp

A full list of the best balms is available here: Best CBD Balms UK

Strongest CBD Paste

Pastes are a concentrated form of CBD extract that contain the full-spectrum of cannabinoids, terpenes, flavonoids, plant nutrients and other plant matter. They are thick so they are sold in small syringes for easy application. You can take them sublingually, add them to food or even apply them to your skin.

PharmaHemp 50% CBD Paste

PharmaHemp Logo
PharmaHemp 50% CBD Paste Syringes
How Good Is It?
With a huge 2500mg of CBD, this paste comes in a 5ml syringe. The supercritical CO2 extraction process has preserved the full range of cannabinoids, terpenes and flavonoids increasing its potency. However, because you get the complete set of plant nutrients and chemicals the flavour is very strong.

This is a beautiful dark amber paste and contains a blend of coconut oil, shea butter and cocoa butter. This takes the edge of the smell and flavour and helps you to fully enjoy the effect of this potent extract.

Pros
Whole plant extract
Natural ingredients
Syringe for easy use
5000mg CBD
Cons
Intense flavour
Buy at PharmaHemp

The strongest CBD products will give you more options than many others. They are compact, versatile, value for money and are closer to the amounts used in studies. When you make your choice, remember not to buy anything that doesn’t come with an up to date certificates of analysis. Looking for customer reviews to hear the experiences of others will also help to ensure you get a good deal. Don’t forget to leave your reviews in the comments too.

Remember a large amount of CBD doesn’t always guarantee potency. Look out for products made with full-spectrum or whole plant extracts. The taste may be unpleasant, but you will get a better quality product.