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CBD oil: what dosage, what use ?

Society is increasingly liberalising its opinion and [legislation] on cannabis products.
But if there is one star among the plethora of new choices available to the consumer, it is CBD oil.
The scientific community is also riding the green wave, and there is a flurry of opinions and studies in this new field.
So we have the right to ask ourselves what are the optimal dosages to get the most out of the benefits of this product.
So let’s start by turning the question around and see what the uses of CBD oil can be.

How to use CBD oil ?

As we mentioned earlier, the liberalisation of CBD and the democratisation of the studies surrounding it is a recent phenomenon, and if the studies we will quote here show encouraging signs, let us remember that science is a slow process, which requires the repetition of highly codified experiments before showing conclusive results.
The technical expertise of a health professional always takes precedence over the rest, and CBD oil cannot be considered as a drug.

However, CBD does act on certain neurotransmitters, and therefore has undeniable psychosomatic effects.
As a study by Professors Shannon and Opila-Lehman on the ability of CBD oil to stop a problematic use of THC ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4718203/ ) reminds us, the CB1 and CB2 neuroreceptors on which CBD acts help, among other things, to calm the perception of pain and inflammation, calm excessive neuronal activity and thus reduce stress and anxiety, and
regulate movement control.
Thus, CBD is said to have anxiolytic and soothing properties, as in another study by Shannon and Opila-Lehman ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5101100/ ), where CBD oil, in conjunction with psychiatric follow-up, enabled a young patient suffering from post-traumatic stress due to sexual abuse to calm her anxiety and regain better sleep.

What is the dosage of CBD oil ?

As for the recommended dosage, one answer is definitive: there is no definitive answer.
A study by Prof. Zuardi, in collaboration with other doctors, ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5425583/ ) studied the anxiolytic effects of CBD by asking subjects to speak in public at different dosages, with placebo and anxiolytic medication.
The study shows that of three dosages of CBD at 100, 300 and 900 milligrams, the average dosage of 300 is the most effective; in other words, overdose negates the positive effects of CBD, but the correct dosage has comparable effects to a conventional anxiolytic found in pharmacies, at least in this study.
So taking too much is the same as not taking enough.

Another study looking at the effects of CBD on epilepsy in children ( https://www.sciencedirect.com/science/article/abs/pii/S0387760418301128 ) proposed a mean dosage of 11mg/kg.
A child weighing 30 kg ingested 330 mg of CBD per day.
It should be noted that a good half of the patients experienced a halving of their epileptic seizures, but another half of the subjects experienced adverse effects.

What is important to remember about this last example is the individual variety: each person has a different brain chemistry, with different reactions to the different cannabinoids present in CBD oil, which are not necessarily all present in the oil in question.
Therefore, we have to be careful about the type of oil we use, the quality of the oil ( https://naturalpes.ch/comment-verifier-le-niveau-de-purete-de-lhuile-de-chanvre-ou-de-cbd/ ), and to address this problem, there are so-called full spectrum CBD oils with the full range of non-psychotropic cannabinoids on the market (https://naturalpes.ch/en/product/swiss-cbd-cannabis-oil-raw-13/ ).
Another factor to consider when dosing CBD oil is our weight, as with all substances.

What dosage for CBD oil ?

Finally, let’s talk about concrete dosing.
First of all we have to dose the amount of CBD present in the oil:

2.5% CBD oil: 1.25 mg of CBD per drop
5% CBD oil: 2.5 mg of CBD per drop
10% CBD Oil: 5 mg CBD per drop
CBD Oil 20%: 10 mg CBD per drop

From the address <https://www.cibdol.com/cbd-encyclopedia/how-much-cbd-should-i-dose-understanding-the-basics>

And determine, based on our weight, what average amount seems good (here we have an example to reduce pain):

Dosage table CBD oil by weight




Weight :





+ 11kg







Null- Light
4.5 mg
6 mg
9 mg
12 mg
18 mg
22.5 mg
6 mg
9 mg
12 mg
15 mg
22.5 mg
30 mg
9 mg
12 mg
15 mg
18 mg
27 mg


The last piece of advice for an optimal dosage is to listen to your body.
We should not hesitate to note the dose we took and the effects we obtained. As we’ve said throughout this article, the definitive answer is that there is no definitive answer, every case is different, but these guidelines may help us find our way around!