CBD is everywhere right now. On the high street, in coffee shops, in your social media feed.
But for something so widely talked about, it's surprisingly badly explained. Most of what you'll find online is either written by people who don't really understand the plant, or by brands trying to sell you something without being allowed to tell you what it actually does.
This is our attempt to do it properly. Plain English, no health claims, no hype - just a genuine explanation of what CBD is, where it comes from and why it matters.
Start With the Plant
CBD - cannabidiol - is a naturally occurring compound found in the Cannabis sativa plant. It's one of over 100 identified cannabinoids that the plant produces, alongside THC, CBG, CBN, CBDA and many others.
The cannabis plant has been cultivated by humans for thousands of years - for food, for fibre, for rope, for textiles, for medicine. Hemp - the low-THC variety of the cannabis plant - has been brewed as a herbal tea and used in folk medicine traditions across Asia, the Middle East and Europe for centuries. What we call CBD is simply one of the active compounds in a plant with a very long human history.
Understanding that context matters. CBD isn't a synthetic pharmaceutical or a modern invention. It's a compound that exists naturally in a plant that humans have had a relationship with for millennia.
What CBD Actually Is - The Science in Plain English
CBD is a phytocannabinoid - a cannabinoid produced by a plant rather than by the human body. It interacts with a system in the human body called the endocannabinoid system - a regulatory network of receptors, enzymes and signalling molecules that plays a role in maintaining balance across multiple bodily functions.
The endocannabinoid system was only discovered in the early 1990s, which is one reason why research into CBD and its effects is still developing. The body produces its own cannabinoid-like compounds naturally - called endocannabinoids - and the receptors these compounds interact with also respond to plant-derived cannabinoids like CBD.
CBD interacts with CB1 and CB2 receptors - the two main receptor types in the endocannabinoid system - as well as several other receptor types including serotonin receptors and the COX-2 enzyme associated with inflammation. It doesn't bind to these receptors in the same way that THC does, which is why it doesn't produce a psychoactive high.
CBD vs THC - The Key Difference
This is the question most people start with and it's the right one to ask.
THC - tetrahydrocannabinol - is the compound in cannabis that produces the psychoactive high most people associate with the plant. It binds directly and strongly to CB1 receptors in the brain, producing intoxicating effects.
CBD doesn't do this. It interacts with the endocannabinoid system differently - it doesn't bind directly to CB1 receptors in the same way and doesn't produce intoxication. You can consume CBD without getting high.
This is the fundamental distinction that makes CBD products legal in the UK while cannabis with significant THC content remains controlled under the Misuse of Drugs Act 1971.
What Is CBDA - and Why Does It Matter?
Here's something most CBD content doesn't mention - and it's genuinely important.
Raw hemp flower doesn't actually contain much CBD. It contains CBDA - cannabidiolic acid - the raw, unheated precursor to CBD. CBDA only converts to CBD through a process called decarboxylation, which happens when heat is applied to the plant material.
This means that what you're consuming depends significantly on how the product was made and how you're consuming it. A CBD oil made through high-temperature extraction contains predominantly CBD - the heat has converted most of the CBDA. But hemp flower brewed as a herbal tea at lower temperatures extracts primarily CBDA - the raw acid form of the compound.
This isn't a minor distinction. Emerging research suggests CBDA may have higher bioavailability than CBD in certain delivery methods and works through slightly different mechanisms in the body. For a deeper dive into this specifically, our CBDA vs CBD post covers it in full.
What Forms Does CBD Come In?
CBD is available in several different forms, each with meaningfully different characteristics:
CBD flower - the dried and cured flowers of the hemp plant, containing the full spectrum of cannabinoids, terpenes and other plant compounds in their natural form. At Originals CBD, our flower is sold for use as a herbal tea or loose leaf infusion. This is the most whole-plant form of CBD available.
CBD oil - an extract of the hemp plant combined with a carrier oil, usually MCT or hemp seed oil. The quality and cannabinoid profile varies significantly depending on the extraction method and the source material. Full spectrum oils retain the broader cannabinoid and terpene profile. Isolate-based oils contain only CBD.
CBD capsules and gummies - CBD oil or isolate in an ingestible format. Convenient and measured but typically further removed from the whole plant.
CBD drinks and infused beverages - CBD is increasingly appearing in ready-to-drink formats. The bioavailability of CBD in water-based drinks is lower than in oil-based formats due to its fat-soluble nature, though some manufacturers use emulsification technology to improve this.
What Is a CBD Drink?
CBD drinks and CBD-infused beverages have become increasingly popular - sparkling waters, teas, soft drinks and functional drinks all appear with CBD listed as an ingredient.
The honest answer on CBD drinks is that the science around bioavailability in water-based formats is still developing. CBD is fat-soluble rather than water-soluble, meaning it doesn't naturally mix with water and standard CBD extract will not distribute evenly through a water-based drink without processing. Some manufacturers use nanoemulsion or liposomal technology to improve this, with varying results.
If you're interested in CBD in a drink format, hemp flower brewed as a loose-leaf herbal tea is the most traditional and arguably most effective approach - you're getting the full plant profile extracted into hot water, with the option of adding milk to improve the extraction of fat-soluble compounds. It's a practice that predates the modern CBD industry by centuries.
What Should You Look For When Buying CBD?
A few things matter more than the marketing:
A Certificate of Analysis from an accredited independent laboratory confirming the CBD content, the full cannabinoid panel and THC levels. Without this you genuinely don't know what you're buying.
Traceability - where was the hemp grown, by whom, and how? This matters particularly for flower where the genetics, growing method and curing process directly affect quality.
Honest labelling - no medical claims, no promises of outcomes, no cure language. Reputable CBD brands don't make these claims because they're not permitted to and because the evidence doesn't support blanket guarantees.
A clear understanding of format - what you're buying, how it was made, and how to use it appropriately.
Is CBD Legal in the UK?
Yes - CBD is legal in the UK, but the legal framework is specific and worth understanding.
CBD itself is not a controlled substance under the Misuse of Drugs Act 1971. However, the products CBD appears in are subject to regulation depending on their format. Ingestible CBD products - oils, capsules, gummies, drinks - are classified as novel foods by the Food Standards Agency and require authorisation before being legally sold. THC limits apply to all CBD products.
CBD flower sits in a specific legal position - sold for use as a herbal tea rather than for smoking or vaping, and subject to the exempted product definition under the Misuse of Drugs Regulations 2001. For a full breakdown of where UK CBD law currently stands, our CBD Law in 2026 post covers it in detail.
The Bottom Line
CBD is a naturally occurring plant compound with a long human history and a growing body of research behind it. It's not a miracle cure and any brand that tells you otherwise is either uninformed or misleading you. But it's also not snake oil - the science is developing in an interesting direction and millions of people use it as part of their daily routine with positive experiences.
The key is understanding what you're actually buying, where it came from and what form best suits you. That's what we try to help with at Originals CBD - not just selling product but genuinely explaining the plant behind it.
Frequently Asked Questions
What is CBD in simple terms?
CBD - cannabidiol - is a naturally occurring compound found in the hemp plant. It's one of over 100 cannabinoids the plant produces and it interacts with the body's endocannabinoid system. Unlike THC - the compound responsible for the cannabis high - CBD doesn't produce intoxicating effects. It's the non-psychoactive component of a plant with a very long human history.
What is the difference between CBD and THC?
THC binds directly to CB1 receptors in the brain and produces a psychoactive high. CBD interacts with the endocannabinoid system differently - it doesn't bind to CB1 receptors in the same way and doesn't produce intoxication. THC is a controlled substance in the UK. CBD is not. Both come from the same plant but produce fundamentally different effects in the body.
What is a CBD drink?
A CBD drink is a beverage - sparkling water, tea, soft drink or functional drink - with CBD added as an ingredient. Because CBD is fat-soluble rather than water-soluble, the bioavailability in water-based drinks can be lower than in oil-based formats unless the manufacturer uses emulsification technology. Hemp flower brewed as a loose-leaf herbal tea is the most traditional CBD drink format and one of the most effective ways to consume the whole plant profile.
What is a CBD infused drink?
A CBD infused drink is the same concept - a beverage with CBD extract added during production. The term is used interchangeably with CBD drink. Quality varies significantly between products depending on the source of the CBD, the concentration used and the technology employed to keep it evenly distributed in the liquid. Always check for a Certificate of Analysis confirming the actual CBD content.
Is CBD legal in the UK?
Yes - CBD is legal in the UK. CBD itself is not a controlled substance under the Misuse of Drugs Act 1971. Ingestible CBD products like oils, capsules and gummies are classified as novel foods and require FSA authorisation. CBD flower is sold for use as a herbal tea under the exempted product definition in the Misuse of Drugs Regulations 2001. All legal CBD products must meet THC limits. For a full breakdown see our CBD Law in 2026 guide.
Does CBD get you high?
No. CBD does not produce a psychoactive high. THC is the compound responsible for the intoxicating effects associated with cannabis. CBD interacts with the endocannabinoid system differently and does not cause intoxication. Legal CBD products in the UK must contain only trace amounts of THC - not enough to produce any psychoactive effect.
What is CBDA and how is it different from CBD?
CBDA - cannabidiolic acid - is the raw, natural form of CBD that exists in the living hemp plant before any heat is applied. CBD is what CBDA becomes when heat converts it through a process called decarboxylation. When you brew hemp flower as a herbal tea at the right temperature you're primarily extracting CBDA rather than CBD - which may actually have higher bioavailability in this form according to emerging research. Our CBDA vs CBD post covers this in detail.
How do I know if a CBD product is good quality?
Look for a Certificate of Analysis from an accredited independent laboratory - this should confirm CBD content, the full cannabinoid panel, THC levels and ideally contaminant testing for pesticides and heavy metals. Check where the hemp was grown and whether the brand can tell you anything meaningful about their source. Avoid products making medical claims or promising specific outcomes - reputable brands don't make those claims because the regulations don't permit them and the evidence doesn't support blanket guarantees.
This article reflects the personal views and expertise of the author and is provided for general information only. It does not constitute medical or legal advice. If you have a specific health condition or are on medication, consult a qualified healthcare professional before making changes to your routine