Higher concentration
40% contains four times the CBD concentration per ml of a 10% oil. This makes the strength difference easy to understand without relying on uncertain drop-count estimates.
Valley CBD UK
40% CBD Oil 12000mg (30ml) UK | Premium & Non-Bitter
Regular price
£54.99 GBP
Regular price
£64.99 GBP
Sale price
£54.99 GBP
Taxes included.
Free tracked delivery included for UK orders
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✓ 40% CBD Concentration ✓ 12,000mg CBD in 30ml ✓ CBD Isolate Formula ✓ Smooth, Non-Bitter Formulation ✓ Free Tracked UK Delivery
Valley CBD 40% is our highest-strength CBD oil, providing 12,000mg of stated CBD in a 30ml bottle. At 40% concentration, the oil contains 400mg CBD per ml, allowing customers to compare its concentration directly with our 10%, 20% and 30% oils.
It is formulated using purified CBD isolate with an MCT-based carrier and is designed for customers who specifically want a highly concentrated CBD oil in a compact 30ml format. A higher percentage describes concentration; it does not mean that a higher daily CBD intake is appropriate.
40%CBD concentration
12,000mgTotal stated CBD
400mg/mlCBD concentration per ml
30mlBottle size
What does 40% CBD oil mean?
A 40% concentration is equivalent to 400mg of CBD per ml. The 12,000mg figure describes the total stated CBD across the full 30ml bottle. We use ml-based concentration here because individual drop size can vary between droppers and how a bottle is used.
A 40% concentration is equivalent to 400mg of CBD per ml. The 12,000mg figure describes the total stated CBD across the full 30ml bottle. We use ml-based concentration here because individual drop size can vary between droppers and how a bottle is used.
Why Choose a 40% / 12000mg CBD Oil?
30ml format
The bottle contains 12,000mg stated CBD in the same 30ml format used across the current Valley CBD oil range.
Isolate-based formulation
Our current oil is formulated around purified CBD isolate rather than a full-spectrum hemp extract, helping us produce a lighter, smoother-tasting high-strength oil.
Strength Information
Understanding 40% CBD Oil Strength
40% = 400mg/ml. That is the clearest way to understand this product's concentration. We do not recommend using a fixed “mg per drop” figure because drop size is not perfectly standardised.
Our free CBD strength calculator explains percentage, total milligrams and mg per ml across the Valley CBD range. It is a strength and concentration tool rather than a personalised medical dosing calculator.
Use the Valley CBD strength calculator →Current UK FSA guidance: healthy adults are advised to limit CBD consumption from food to 10mg per day. The FSA advises people under 18, those who are pregnant, breastfeeding or trying to conceive, and people taking medication to avoid CBD unless under medical direction. Read the current UK guidance. Because this is a highly concentrated product, customers should read the label carefully and consider their total CBD intake.
40% CBD Oil vs 10%, 20% and 30%
The table below compares concentration only. It is not a recommendation that a particular person should consume a particular strength.
| Strength | Total CBD | Bottle | CBD per ml |
|---|---|---|---|
| 10% | 3,000mg | 30ml | 100mg/ml |
| 20% | 6,000mg | 30ml | 200mg/ml |
| 30% | 9,000mg | 30ml | 300mg/ml |
| 40% | 12,000mg | 30ml | 400mg/ml |
Is 40% the Strongest CBD Oil in the UK?
40% is the strongest CBD oil in the current Valley CBD range, but we do not describe it as the absolute strongest CBD oil sold anywhere in the UK. Concentrations and products across the market can change, so we prefer to make a precise claim about our own range.
For customers comparing high-strength CBD oils, the useful figures are the concentration, bottle size, total stated CBD, formulation, price and the evidence available for the ingredients or finished product. Valley CBD 40% provides 12,000mg stated CBD in a 30ml bottle at 400mg/ml.
CBD Isolate, Lab Reports and Product Information
CBD isolate
The current formula is made using CBD isolate rather than broad-spectrum or full-spectrum CBD extract.
What the COA shows
The CBD isolate used in our products was independently analysed at 99.3% CBD, with total THC reported below the laboratory limit of quantitation. View the current CBD isolate COA. The certificate relates to the CBD isolate ingredient tested by the laboratory; it is not an independent potency test of the finished 30ml bottle.
THC and drug testing
The ingredient COA reports total THC below the laboratory limit of quantitation for the isolate sample tested. That finding does not guarantee the composition of every finished product or the outcome of workplace, roadside, sporting or other drug tests, and Valley CBD does not guarantee drug-test results.
A High-Strength CBD Oil Designed for a Smoother Taste
High-concentration CBD products do not have to be described with exaggerated health claims to explain their value. Valley CBD's 40% oil is designed to provide a high concentration in a straightforward, smooth-tasting 30ml formulation.
Store the bottle tightly closed in a cool, dry place away from direct sunlight and excessive heat, and follow the storage information on the product label.
30-Day Money-Back Guarantee
Valley CBD offers a 30-day money-back guarantee. If you decide the product is not right for you, contact us within the returns period and we will provide the current return instructions.
Questions About Our High-Strength CBD Oil
What does 40% CBD oil mean?
40% means the oil contains 400mg of CBD per ml. In a 30ml bottle, that corresponds to 12,000mg of total stated CBD.
Is 12000mg CBD oil strong?
12,000mg in a 30ml bottle is a 40% concentration, making it the highest-concentration oil currently sold by Valley CBD.
Is this the strongest CBD oil in the UK?
It is our strongest CBD oil, but not the absolute highest concentration sold anywhere in the UK. We prefer to describe the measurable concentration accurately rather than make an absolute market-wide claim.
How much CBD is in one ml?
400mg of CBD per ml.
How many milligrams are in one drop?
Drop size varies between droppers and use, so we do not rely on a fixed mg-per-drop claim. The reliable concentration figure for this product is 400mg/ml.
How much CBD should I take?
Valley CBD does not prescribe personalised CBD doses. Current FSA guidance advises healthy adults to limit CBD consumption from food to 10mg per day, with additional precautionary advice for vulnerable groups and people taking medication.
Is this oil broad spectrum or full spectrum?
Neither. Our current 40% oil is formulated using CBD isolate.
Does the lab report prove the finished bottle contains exactly 12000mg?
No. The current COA reports the tested CBD isolate sample at 99.3% CBD, but an ingredient report is not the same as an independent potency test of the finished 30ml bottle.
Will this CBD oil make me high?
CBD itself is not intoxicating in the way THC is. The current ingredient COA reports total THC below the laboratory limit of quantitation for the isolate sample tested; that finding relates to the tested ingredient sample, not an independent finished-bottle test.
Can you guarantee I will pass a drug test?
No. Valley CBD does not guarantee drug-test outcomes.
How should I store 40% CBD oil?
Keep it tightly closed, cool, dry and away from direct sunlight and excessive heat. Follow the instructions on the label.
Food supplement information only. This product information does not present CBD as a medicine and does not claim to diagnose, treat, cure or prevent disease. Personal medical questions and medication interactions should be discussed with an appropriate healthcare professional.
Great price and the delivery is swift and is fully tracked.
Easy website to browse and order through, and fairly prompt delivery.
From placing my order to delivery of my product a very professional company, I must mention the help (when I have a query)I have received fron Tony has been excellent
First class products and service ,I’ve now used the company and their CBD oil several times and I can confidently recommend them to anyone unsure of using them for the first time
Always a first class product at an affordable price. All supported by superb delivery and excellent customer services. I have no hesitation in recommending Valley Heath to anyone considering the purchase of CBD hemp oil extract.
Valley Health are an excellent company they have a good product at a very competitive price and always deliver promptly.
I would recommend them to anyone in the market for CBD products without hesitation.
Absolutely first class
Very quick delivery and well packaged. Me and my son use this CBD oil and can honestly say its helping us both through tough times.
Very good as usual it was a shame about the website not right. All was resolved with a phone call