Written by Sophie Clarke 
Contents5 sections
High strength CBD refers to a CBD product, most often a CBD oil, with a higher CBD concentration than a brand’s standard range. No regulated threshold sits behind the phrase, so it works as a market label rather than a defined category.
That matters more than it sounds. Lower and higher CBD oils can share the same shelf and the same glossy promises, and only the numbers on the label tell them apart. A “strongest CBD” claim without a milligram figure is like a recipe that says “add some salt”.
This guide gives you the tools to read a high strength CBD label yourself. You’ll convert a percentage into total milligrams and an approximate mg-per-drop figure, see why spectrum is a separate question from potency, and find out how oil, capsules, vape pods and hash each give “strength” a different meaning.
Strength and quality are two different dials. A potent oil made from a mediocre extract is still mediocre, so we’ll take them one at a time.
The essentials in 30 seconds
High strength CBD means a product with more cannabidiol per millilitre than a brand’s standard range, with no official threshold behind the claim. Oil remains the most commonly sold CBD option, even as the shop’s range keeps expanding[6], and label math beats slogans every time.
- Compared to lower strengths, calculate milligrams per drop rather than trusting a “strongest” claim alone.
- Every Spliff product, including oil, vape and balm formats, is lab-tested with THC below 0.3% (0% for vapes and pods), and the full lab analysis of each batch is available on request from customer service.
- Follow label directions for dosing, talk to a healthcare professional before adjusting frequency, and follow Spliff on Facebook to track new high strength CBD arrivals.
What is high strength CBD?
High strength CBD is a hemp CBD oil (or other CBD product) that holds more cannabidiol per millilitre than a brand’s standard range. The CBD industry has no official cut-off, so “strongest” only means something once you turn the percentage into total milligrams and check the lab analysis behind the batch.
How do percentages turn into milligrams per drop?
Multiply the percentage by the bottle volume in millilitres, then add a zero: that’s the total CBD in milligrams. Divide that total by the number of drops your dropper releases per millilitre and you get the CBD in each drop.
Count those drops yourself, because pipettes vary. Run the same sum on a lower and a higher oil in the same bottle size and the gap is plain. Compared to lower strengths, the stronger oil simply packs more CBD into each drop. That’s pure label arithmetic, not a serving suggestion.
Full spectrum, broad spectrum or isolate: does it change the strength?
No, and it’s one of the most frequently asked questions for good reason. Spectrum describes what else travels with the CBD: full spectrum keeps the plant’s other cannabinoids and terpenes, broad spectrum keeps most of them without THC, and isolate is CBD on its own.
A high quality extract shows its hemp origin, extraction method, carrier oil and batch analysis. “Premium quality” with no numbers is just marketing. For context from clinical research, a published review notes that only one CBD product, Epidiolex, has been approved by the FDA to date, which says nothing about how strong a high strength CBD oil on the shelf is[4].
Can high strength CBD oil be taken twice a day?
Only if the label of your high strength CBD oil says so. Always follow the directions printed on the bottle, and talk to a healthcare professional before adjusting how much or how often you take it. Where a label does suggest two servings, that means splitting the stated amount, not doubling it.
With a stronger bottle, one extra drop shifts your total further than it would with a milder one. Starting at the lower end of the label’s guidance keeps the overall experience predictable.
Follow a simple routine: same dropper, same drop count, and a quick note of what you used. If counting drops feels fiddly, CBD capsules are the tidier option, with CBD in a fixed amount per piece.
Formats vary widely across CBD products. The Food Standards Agency commissioned a survey of 100 CBD products on sale, including oils, sprays and capsules[5]. Whatever shop you buy from, read the label of the exact format you hold (oil, capsule or balm), because each one sets its own directions.
Choosing the right high strength CBD: oil, vape or hash
Once the label makes sense, the last decision is format, because each one gives potency its own meaning. Oil is still the most commonly sold CBD product, even as the overall range of CBD products keeps expanding[6].
- CBD oil is the reference for comparing high strength CBD, since every drop is measurable and you control the amount. The CBD oil collection is the place to start if precision is your priority.
- Vapes and pods are ready to use, with no dropper and no counting. The Magic Vape shows strength as a share of the liquid. That range CBD percentage describes a different format from oil, so the two numbers can’t be compared directly.
- High-CBD hash is the concentrate route. Afghan Hash 70% CBD puts the strength in the resin itself: dense and earthy, like espresso next to filter coffee. If you go this way, add papers from the accessories range.
Choosing right comes down to one trade-off: oil for measurable precision, a vape for simplicity, hash if you value natural aroma and texture. None of these options is the best for everyone, and you don’t need a wealth of knowledge to compare these products. Each product page shows the price and reviews of the day.
Conclusion
Whichever format ends up on your shortlist, the method stays the same: high strength CBD earns its price only when the numbers back it up. Strength alone does CBD shoppers no favours; milligrams, spectrum and a lab analysis do.
Before you buy, run the label math and pick the profile you enjoy, whether that’s a CBD oil natural in taste or a flavoured blend. In an industry fond of “premium” wording, that habit will help you more than any slogan.
Start with the CBD oil collection, calculator in hand.
Frequently asked questions
Can you feel stoned on CBD?
No psychoactive “high” is expected from CBD itself, since every Spliff product is lab-tested with THC content kept below 0.3% (0% for vapes and pods). This keeps the experience distinct from THC-driven effects, regardless of whether you choose an oil, a balm or a vape from the shop.
Sources
- Therapeutic Efficacy of Cannabidiol (CBD): A Review of the … — pmc.ncbi.nlm.nih.gov
- Analysis of CBD Products (2022-23) — science.food.gov.uk
- Consumer CBD products report (accessible version) — www.gov.uk
