The effects of CBD oil are among the most frequently discussed topics related to cannabidiol. Many people are interested in how CBD works in the body and why this plant-based compound is being studied in research, particularly in connection with stress, sleep, pain management, and neurological disorders.
It is important to make a key distinction here: Research on isolated or pharmaceutical-grade cannabidiol cannot automatically be applied to every over-the-counter CBD product. Concentration, composition, product category, and the dosages studied can vary significantly.
In this article, we’ll explain what is actually known about the effects of CBD, where research is still ongoing, and what you should keep in mind regarding CBD oil in Switzerland.
If you’d like to compare different products and concentrations, you can do so at Herba di Berna buy CBD oil and compare the available options directly.
What is CBD oil—and how does it work in the body?
CBD stands for cannabidiol and is one of the naturally occurring cannabinoids in the hemp plant. Unlike THC, CBD is not intoxicating and does not cause the cannabis high typically associated with THC.
One important area of research is the endocannabinoid system, or ECS for short. This endogenous signaling system includes, among other things, the cannabinoid receptors CB1 and CB2, as well as endogenous neurotransmitters such as anandamide and 2-AG.
However, CBD does not work simply by binding directly to CB1 or CB2 receptors. Its direct binding affinity for these receptors is relatively low. Instead, various indirect mechanisms and other signaling pathways are being investigated, such as TRPV1, 5-HT1A, and the effect on the breakdown of the body’s own endocannabinoids.
If you’d like to understand the system in more detail, you can find more information in our article on the endocannabinoid system.

Which effects of CBD oil are being studied scientifically?
There are now a large number of scientific publications on CBD. However, the individual areas of research vary significantly in terms of quality and validity.
CBD and Stress or Anxiety
CBD is being studied in connection with anxiety reactions and stress, among other conditions. Systematic reviews of clinical trials provide interesting insights; however, the number of participants, the doses used, and the study designs vary widely.
A recent review of randomized trials therefore concluded that, while there is evidence of potential effects, the results are sometimes contradictory, and further high-quality studies are still needed.
This means that while the research is interesting, it does not support a general conclusion that commercially available CBD oil reliably reduces stress or anxiety.
CBD and Sleep
The possible link between CBD and sleep is also the subject of intense debate. It is important to distinguish between subjective anecdotal reports and controlled clinical studies.
Sleep problems can have a wide variety of causes. In addition, studies vary considerably in terms of CBD dosage, duration, and the study population. For this reason, it is not currently possible to draw any general conclusions about the effects of CBD oils on sleep.
CBD and Pain Processing
Another major area of research concerns pain and inflammatory processes. Preclinical studies provide numerous clues as to possible mechanisms. However, clinical results vary depending on the type of pain and the study.
Recent reviews recognize its scientific potential but also point out that the clinical evidence for isolated CBD remains limited and that additional controlled studies are needed.
Therefore, the same applies here: Research findings do not guarantee that an over-the-counter CBD product will alleviate specific symptoms.
Where has the medical efficacy of CBD been proven?

The field of epilepsy is particularly interesting.
In Switzerland, Epidyolex, a prescription drug containing cannabidiol, has been approved. Among other uses, it is used as an adjunct to the treatment of certain severe forms of epilepsy. Swissmedic approved the drug in 2021 and later expanded its indication.
This is important scientific evidence that cannabidiol can have pharmacological effects.
However, this does not mean that over-the-counter CBD oils have the same medical effects. Medications such as Epidyolex are used with a precisely defined composition, dosage, and under medical supervision.
Why can people experience CBD differently?
There is no single answer to the question “How does CBD work?” that applies to everyone.
Differences can arise, among other things, due to:
- Composition and CBD Content of a Product
- Other cannabinoids and plant compounds contained therein
- individual differences in metabolism
- Taking Medications
- Product form examined or used
- Frequency and Duration of Use
That is why, while reviews from other users are interesting, they are no substitute for a scientific evaluation of a product.
Full Spectrum, Broad Spectrum, or CBD Isolate

The composition also varies from product to product.
Full-spectrum products contain CBD as well as other components of the hemp plant and may also contain small amounts of THC.
Broad-spectrum products contain various plant components, but are processed in such a way that THC is removed or significantly reduced.
CBD isolate, on the other hand, consists largely of isolated cannabidiol.
Science has not yet conclusively determined what differences this actually makes in terms of effectiveness. For this reason, the frequently cited “entourage effect,” for example, should not be presented as a guaranteed characteristic of a full-spectrum product.
CBD Oil in Switzerland: What Are the Legal Considerations?
The THC threshold is relevant for classification under Swiss narcotics law. However, whether a CBD product may be legally sold in Switzerland also depends on its composition, intended use, and product category.
Products containing CBD can be used, for example, as:
- Medicines
- Cosmetic
- Chemical
- Tobacco or smoking product
- Food
In Switzerland, particularly strict rules apply to CBD as a food product. Cannabinoids such as CBD and certain hemp extracts are generally considered novel foods unless evidence of prior use can be provided. Unauthorized novel foods may not be marketed as food products.
That is why customers are interested not only in the CBD or THC content, but also in how a specific product is labeled and for what purpose it is being marketed.
What side effects and drug interactions are possible?
CBD is often described as well-tolerated. Nevertheless, “plant-based” does not automatically mean “free of side effects.”
In clinical studies, the following, among other things, were observed:
- Fatigue or drowsiness
- Changes in appetite
- Diarrhea
- Changes in Certain Liver Enzyme Levels
- Drug Interactions
Potential interactions are particularly important, as CBD can affect the enzyme systems responsible for metabolizing various medications. The BLV also points out that there are still unresolved safety concerns regarding CBD and its potential effects on the liver.
Anyone who takes medication regularly or wishes to treat a health condition should therefore discuss the use of CBD with a doctor or pharmacist beforehand.
CBD Oil Effects and Product Quality: What Should You Look For?
Anyone researching CBD products should distinguish between the effects and the product quality.
A product offered by a reputable seller should clearly indicate:
- how high the CBD content is
- what other cannabinoids are present
- which product category it belongs to
- what ingredients are included
- who the manufacturer or responsible company is
- whether traceable laboratory or batch information is available
If you’d like to discover other hemp products in addition to CBD oil, you’ll find them in our CBD online shop in Switzerland the entire Herba di Berna product line.
Conclusion: What do we know today about the effects of CBD oil?
CBD is a pharmacologically active plant compound whose effects are now being extensively studied. The medical use of purified cannabidiol for certain rare forms of epilepsy is particularly well documented.
When it comes to topics such as stress, sleep, or pain, studies point to some interesting approaches, but the evidence is far less conclusive. For this reason, a clear distinction should be made between scientific research, approved CBD medications, and over-the-counter CBD products.
Anyone looking to buy CBD products in Switzerland should therefore pay attention not only to marketing claims but also to transparent information about the ingredients, product category, and quality.
FAQ – Frequently asked questions about the effects of CBD oil
Wie wirkt CBD Öl im Körper?
CBD influences various biological signaling pathways and is being studied particularly in relation to the endocannabinoid system. The effects may be perceived differently depending on the product, composition, and individual.
Warum macht CBD Öl nicht high?
CBD itself does not cause the cannabis high typically associated with THC. However, depending on the product, it may contain small amounts of THC or other cannabinoids, which is why it is important to check the product label.
Wie unterscheidet sich die Wirkung von Vollspektrum CBD und CBD Isolat?
Full-spectrum products contain CBD as well as other components of the hemp plant, whereas CBD isolate consists largely of isolated cannabidiol. Whether this reliably results in different effects has not yet been conclusively established by science.
Welche Wirkung hat CBD Öl laut Forschung?
CBD is being studied in relation to, among other things, stress responses, sleep, pain management, and neurological disorders. However, the scientific evidence varies greatly depending on the area of application, which is why no general claims can be made about the effects of commercially available CBD oils.
Welche Nebenwirkungen kann CBD haben?
Studies have reported, among other things, fatigue, changes in appetite, diarrhea, and drug interactions. Especially if you take medication regularly, you should discuss CBD use with a doctor or pharmacist beforehand.
Worauf sollte man bei CBD Öl in der Schweiz achten?
It is important to have clear product labeling, traceable ingredients, CBD and THC information, and the legal product category. The THC content alone does not determine whether a CBD product is being marketed correctly in Switzerland.
Sources
Swissmedic – Epidyolex® with Cannabidiol
Official information regarding the Swiss approval of Epidyolex containing cannabidiol for certain forms of epilepsy. Epidyolex was approved in 2021, and its indication was later expanded.
Federal Office for Food Safety and Veterinary Affairs (BLV) – Cannabis, Hemp Extracts, and Cannabinoids as Food
Up-to-date information on the legal classification of CBD and other cannabinoids as food and novel foods in Switzerland, as well as on existing safety issues.
BLV – Cannabidiol (CBD) in Cosmetics
Information on the use of CBD in cosmetics, safety requirements, and the legal limits on therapeutic claims.
Federal Office of Public Health (FOPH) – Cannabis and Low-THC Cannabis Products
Information on the legal status of cannabis containing less than 1% THC and on the classification of various cannabis products in Switzerland.
WHO – Cannabidiol (CBD) Critical Review Report
World Health Organization scientific assessment of cannabidiol, pharmacology, safety, and potential for abuse and dependence.
WHO – Expert Committee on Drug Dependence: Review of Cannabis
The WHO’s assessment of CBD and the international evaluation of cannabidiol. Among other things, the WHO concluded that pure CBD shows no discernible potential for abuse or dependence.



