Science
Molecules, mechanisms of action and the state of cannabinoid research.
Science
12 September 2026·11 min
CBD testing labs: 5 steps to check accreditation
An ISO claim alone is not enough. Find the laboratory in its official register and check whether its scope covers the specific analysis presented.
Science14 August 2026·6 min
CBD, eczema and psoriasis: state of the research and the cosmetic framework
A randomised trial tested CBD alone against placebo on atopic dermatitis. What it measured, and what the cosmetic framework allows to be said.
Science14 August 2026·6 min
CBD and multiple sclerosis: what the research establishes
The favourable data concern a THC-based medicine, authorised in France but never marketed. The only trial of CBD alone failed on spasticity.
Science14 August 2026·6 min
CBD and irritable bowel syndrome: the state of the research
Only one randomised trial has tested cannabidiol in this syndrome, finding no difference from placebo. What it measured, and what the French framework says.
Science14 August 2026·6 min
CBD and ADHD: what the research has actually measured
No randomised trial has tested cannabidiol alone in ADHD. The only published controlled trial involved a THC-based medicine, and was negative.
Science14 August 2026·6 min
PTC ('pète ton crâne'): what it really is, and why it is dangerous
PTC is not cannabis: it is synthetic cannabinoids sprayed onto leaves or onto CBD. Actual composition, documented risks, legal framework and where to find help.
- Science
4 August 2026·6 min
CBD before an operation: why you must tell your anaesthetist
American guidelines from 2023 recommend systematic screening before surgery. What the research establishes, and what it does not settle.
Science4 August 2026·6 min
CBD and alcohol: what the state of the research really says
A 1979 study on 10 people, a 2023 replication on 36: the file is thin. What is established, what is not, and the official guidance.
21 July 2026·5 min
CBD side effects: what the science says, dose by dose
CBD is considered well tolerated, but not harmless: side effects, drug interactions and the safe level set by EFSA in 2026. A clear overview.
21 July 2026·5 min
Does CBD get you high? The clear answer, from receptor to courtroom
No, CBD does not get you high. Why, at the level of the CB1 receptor, and what the WHO, the CJEU and the Conseil d'État say about it. The facts, without approximation.
13 July 2026·4 min
CBD and medicines: understanding the grapefruit effect
CBD shares with grapefruit the ability to slow down the metabolism of many medicines. Here is the mechanism, in plain terms, and why you should discuss it with a healthcare professional.
13 July 2026·3 min
CBDV (cannabidivarin): an emerging cannabinoid
Less well known than CBD, CBDV is drawing researchers' interest for its anticonvulsant leads, still at the preclinical stage.
19 May 2026·4 min
Supercritical CO2 extraction: isolating cannabinoids without solvents
Extraction with CO2 in its supercritical state separates cannabinoids and terpenes with no hydrocarbon residue whatsoever. Here is how the process works and what quality control surrounds it.
18 May 2026·5 min
What are cannabinoids? Definition, types and the French framework
Around a hundred molecules produced by hemp, by the human body and sometimes in the laboratory. Here is the basic nomenclature and the legal status of each.
18 May 2026·6 min
CBC (cannabichromene): an introduction to a minor cannabinoid
CBC is a minor, non-psychoactive cannabinoid of hemp that is still little studied. A closer look at the compound and its legal status in France in 2026.
18 May 2026·8 min
Does CBD work? What the clinical studies actually say in 2026
Does CBD have demonstrated effects? An honest survey of the available clinical trials, their methodological limits, and how the EFSA and the HAS read them.
18 May 2026·7 min
What is broad-spectrum CBD? Definition and uses
Broad spectrum keeps the minor cannabinoids and terpenes of hemp but removes the THC. Here is what it offers, where its limits lie and what French law allows.
18 May 2026·4 min
CBD or CBN: what are the chemical and legal differences?
Two cannabinoids from hemp, two distinct molecular histories. Here is what really separates CBD from CBN, chemically and legally.
18 May 2026·4 min
CBD or THC? The most persistent myths, untangled
The real differences between CBD and THC, French legal status, known effects and the confusions to avoid for consumers of hemp wellness products.
18 May 2026·4 min
CBG (cannabigerol): an introduction to the \\"mother molecule\\"
Why CBG is called the \\"mother molecule\\": the complete biosynthesis pathway, from olivetolic acid to CBD, THC and CBC.
18 May 2026·4 min
CBG (cannabigerol): a simple definition of a minor cannabinoid
CBG in a few simple markers: basic chemistry, a comparison table with CBD/CBN/THC and the French legal framework, without needless jargon.
18 May 2026·4 min
CBD certificate of analysis: how to read a CoA in France
Cannabinoids, pesticides, heavy metals, residual solvents: what a reliable certificate of analysis must contain, and the pitfalls to avoid.
18 May 2026·7 min
How long does CBD take to take effect?
How long CBD takes to act depending on the route of administration, the recommended assessment window and the known pharmacokinetic limits. Practical markers for a wellbeing routine.
18 May 2026·4 min
How long does CBD stay in the body?
CBD is not looked for by roadside tests, but the THC traces in full-spectrum products can make a saliva test positive.
18 May 2026·7 min
How does CBD oil work? Mechanisms and limits
CBD oil interacts indirectly with the body's endocannabinoid system. An explanation of the CB1 and CB2 receptors and of what the French authorities permit you to say.
18 May 2026·8 min
The CBD entourage effect: what the science actually says
Often promoted by brands, the entourage effect remains a hypothesis under investigation, with no validation from controlled clinical trials.
18 May 2026·4 min
Full-spectrum hemp extract: CBD, CBG and CBN explained
Full spectrum retains all the cannabinoids of hemp. Here is what CBD, CBG, CBN and CBC are, and the French legal framework for these molecules.
18 May 2026·4 min
What does « full spectrum » mean in a CBD oil?
Beyond CBD, a full-spectrum extract contains more than 100 cannabinoids and many hemp terpenes. Here is what the term actually means.
18 May 2026·4 min
Full spectrum or CBD isolate: which to choose, and why
Should you prefer a complete hemp extract or a single purified molecule? A comparison of the uses, advantages and limits of each format.
18 May 2026·8 min
What is the endocannabinoid system?
A network of receptors present in all mammals. Here is its physiological role and its link with hemp cannabinoids, without shortcuts.
18 May 2026·7 min
Hemp terpenes: role, chemistry and presence in CBD
Myrcene, limonene, linalool: terpenes give hemp its scent and contribute to the chemical profile of full-spectrum extracts. Here is what we actually know.
18 May 2026·4 min
What are terpenes? A simple guide for consumers
Terpenes are the molecules that give hemp, lemon and lavender their smell. Here is how to recognise them on the label of a CBD product.
16 May 2026·3 min
Cannabis and mental health: what the science says
THC and CBD do not have the same effects on mental health. Here is what research establishes, and what it does not allow us to claim.
16 May 2026·4 min
CBDA: what is cannabidiolic acid?
CBDA, the acidic form of CBD found in the fresh plant: biosynthesis, decarboxylation, preliminary research and the French regulatory framework.
16 May 2026·4 min
Why terpenes matter as much as CBD
Terpenes shape the smell, the taste and part of the experience felt with CBD hemp. Here is how these molecules work.
16 May 2026·3 min
CBD decarboxylation: the methods that work
Decarboxylation turns the CBDA in the flower into active CBD under the effect of heat. Here are the practical methods for doing it properly.
16 May 2026·3 min
What is CBD, or cannabidiol?
CBD, or cannabidiol, is a non-psychoactive cannabinoid from hemp. Chemistry, legal status and available formats: the basics worth knowing.
16 May 2026·3 min
THC and CBD: what are the molecular and effect differences?
Same plant, two very different molecules: chemical structure, receptor affinity and mechanisms of action explained simply.
16 May 2026·3 min
THCJD: what is this synthetic cannabinoid?
A synthetic molecule with an octyl chain that has appeared on foreign markets, THCJD does not occur naturally in hemp and remains outside the legal framework in France.
12 May 2026·4 min
CBD from somewhere other than hemp: what the science says
No other plant produces true CBD: here is why certain confusions persist, and how laboratory biosynthesis is changing the picture.
12 May 2026·3 min
Marijuana and CBD: what are the differences, beyond the clichés?
Marijuana and CBD are often confused in everyday language. Chemistry, legal status and effects: what really sets these two uses of cannabis apart.
12 May 2026·4 min
Clearing THC from the body: myths and reality
Detox kits, water, intense exercise: a review of what genuinely speeds up THC elimination, and what is simply marketing myth.
12 May 2026·3 min
THCV: the natural cannabinoid with distinctive effects
THCV is a natural hemp cannabinoid, structurally close to THC, whose pharmacological profile varies considerably according to the dose.