This is the most commonly cited rule in dosage guides: start with 0.5 mg per kilogram of body weight per day, then adjust gradually.
Here are the essential points to remember before starting:
- Starting dose : an initial dosage per kilogram of body weight, to be divided into 1 or 2 doses.
- Typical range : varies according to individual sensitivity and objective.
- General safety limit : it is recommended not to exceed a certain dose without medical supervision.
- If you are taking medication : consult your doctor or pharmacist before starting. CBD interacts with liver enzymes that metabolize many medications.
Pro tip: Note your weight, the concentration of your oil, and the bottle volume before reading further. You'll be able to apply each formula to your situation in real time.
Key points
CBD oil dosage is based on a numerical starting rule (0.5 mg/kg/day), a transparent calculation method and a progressive titration protocol to adjust safely.
| Point | Details |
|---|---|
| Starting dose | 0.5 mg/kg/day, or about 35 mg for a person of average weight, to be adjusted in increments of 5–10 mg every 5–7 days. |
| Calculating mg/drop | total mg (volume × % × 10) ÷ volume ÷ 20; check the actual number of drops/ml on the manufacturer's instructions. |
| Start low, go slow | Maintain each dose for 5 to 7 days before increasing; keep a diary to isolate the actual effect. |
| CYP450 Interactions | CBD inhibits CYP2C19 and CYP3A4; consult a doctor or pharmacist before use with any ongoing treatment. |
| Lord Of CBD | Compliant organic oils (THC < 0.3%), several concentrations available and free online dosage calculator. |
Table of Contents
- How do I convert the percentage of an oil into mg per drop?
- What dose is appropriate for your weight and sensitivity?
- Which rate should I choose and how can I get started safely?
- How should I take the oil to maximize its absorption?
- Drug interactions, contraindications and the legal framework in France
- What signs should prompt you to consult a doctor?
- Use a calculator so you never get the dose wrong again
- What I've learned after years of observing dosage errors
- Lord Of CBD oils to start your protocol
- Sources
How do I convert the percentage of an oil into mg per drop?
The confusion between the stated percentage and the actual milligrams is the main source of error in CBD oil dosage. Here's the three-step method.
Step 1: Calculate the total mg of the vial
total mg = volume (ml) × concentration (%) × 10
Step 2: Obtain the mg per ml
mg/ml = total mg ÷ volume (ml)
Step 3: Calculate the mg per drop
The standard convention is approximately 20 drops per ml, which gives:
mg/drop = mg/ml ÷ 20
For the previous example: 200 ÷ 20 = 10 mg per drop.
The table below summarizes the values for common concentrations in a 10 ml bottle:
Some manufacturers specify 25 or 30 drops/ml on their instructions. Always check the product information before applying the 20-drop convention—an error here will affect all your doses. For more details on calculating mg/drop, the dedicated Lord Of CBD page details the variations depending on the bottle.*
What dose is appropriate for your weight and sensitivity?
The rule of 0.5 mg/kg/day as a starting point is used in several practical dosage guides. This corresponds to a microdosing suitable for beginners or sensitive individuals. For more pronounced objectives (chronic pain, severe sleep disorders), some protocols increase the dose to 1 mg/kg/day, or even more under medical supervision.
The following table provides concrete examples for the most common concentrations. The doses indicated are starting points, not prescriptions.
Two concrete examples to illustrate adaptation:
- Sensitive beginner, 60 kg, goal anxiety : start at 15 mg/day (10% oil → 3 drops), maintain for 7 days, then increase to 30 mg if the effect is insufficient.
- Confirmed user, 80 kg, chronic pain : start at 40 mg/day (20% oil → 4 drops morning + evening), adjust in increments of 10 mg every week.
Individual factors play a significant role: age, metabolism, food intake, and sensitivity to the endocannabinoid system all influence the response. Two people of the same weight can react very differently to the same dose.
Which rate should I choose and how can I get started safely?
The choice of concentration depends as much on your objective as on your tolerance for adjusting drops.
- Lower concentrations, such as 5%, allow for fine adjustments and are well-suited for beginners.
- The intermediate level, like 10%, balances precision and practicality for the majority of uses.
- Higher concentrations, such as 20% or 30%, are suitable for larger adjustment needs or experienced users wishing to reduce the volume ingested.
The titration protocol recommended by several assay guides follows a simple logic:
- Week 1 : starting dose (0.5 mg/kg/day), one dose in the evening.
- Week 2 : if the effect is insufficient, increase by 5 mg/day.
- Following weeks : increments of 5 to 10 mg every 5–7 days until the desired effect is achieved.
- Stabilization : maintain the effective dose for 2 to 4 weeks before any further modification.
For sleep, a single dose 30 to 60 minutes before bedtime often works better than a split dose. For anxiety or chronic pain, two doses (morning and evening) help maintain a more stable level throughout the day.
Pro tip: Keep a diary for the first 3 weeks. Note the time, the dose in mg, and how you felt 1 hour later. Without this tracking, it's impossible to know if a dose is effective or if you just had a good day.
How should I take the oil to maximize its absorption?
The sublingual route remains the gold standard for CBD oils. Place the drops under the tongue, hold for 60 to 90 seconds, and then swallow. Absorption through the oral mucosa is faster than through the digestive tract, with effects generally noticeable between 15 and 45 minutes, according to pharmacokinetic data available on PubMed.
Diet significantly influences absorption. Taking the oil with a high-fat meal increases the amount of CBD absorbed through the digestive system (the portion swallowed after sublingual administration). On an empty stomach, the effect is often faster but less prolonged. For sleep-oriented use, taking it after dinner combines both benefits.
- Sleep : 30–60 minutes before bedtime, single dose.
- Anxiety : morning on an empty stomach or with a light meal, possibly a second dose in the early afternoon.
- Pain : two regular doses (morning and evening) to maintain a constant level, adjusted according to pain peaks.
Splitting the doses helps to smooth out the effect over time rather than concentrating everything in one large dose.
Pro tip: Standardize your method: same time, same pipette position, same holding time. Variability in administration technique is often mistaken for variability in the oil itself.
Drug interactions, contraindications and the legal framework in France
Interactions via cytochrome P450
CBD inhibits several enzymes in the cytochrome P450 family, notably CYP2C19 and CYP3A4. These enzymes metabolize a large proportion of common medications. As a result, CBD can increase or decrease the plasma concentration of a concurrently taken medication, sometimes clinically significantly. Classes of drugs to monitor particularly closely include anticoagulants (warfarin, rivaroxaban), benzodiazepines, antiepileptics, immunosuppressants, and certain antidepressants. This mechanism is documented and discussed by healthcare professionals in specialized guidelines.
For potential drug interactions, Lord Of Cbd offers a dedicated resource that lists the relevant therapeutic classes.
Contraindications and precautions
- Liver disease : CBD is metabolized by the liver; liver failure alters its elimination and increases the risk of accumulation.
- Pregnancy and breastfeeding : the lack of sufficient safety data justifies a contraindication as a precaution.
- Children and adolescents : except for supervised medical use (such as the treatment of certain rare epilepsies), CBD is not recommended for minors.
- Elderly people : metabolism often slowed, start at even lower doses (0.25 mg/kg/day).
Legal framework in France
In France, the sale of hemp-based products is regulated by official regulations that set the maximum THC content. The Public Health Code and its corresponding Official Journal (JORF) specify the conditions for placing these products on the market. Any product exceeding this threshold is illegal to sell. For a complete overview of the legal status, CBD in France summarizes the applicable regulations.
Pro tip: Before you begin, list all your medications (including supplements) and show this list to your pharmacist. They are the most accessible professional for an initial check of potential interactions.
What signs should prompt you to consult a doctor?
Some side effects are mild and temporary (slight drowsiness, dry mouth, drop in blood pressure). Others require immediate discontinuation and medical attention
- Jaundice or yellowing of the eyes : a possible sign of liver damage.
- Severe or persistent abdominal pain : to be reported immediately.
- Severe drowsiness or confusion : especially if you are taking sedative medications at the same time.
- Unexplained change in the effect of a usual drug : anticoagulant that bleeds more, antidiabetic that causes more hypoglycemia.
- Allergic reaction : hives, swelling, difficulty breathing.
If any of these signs appear: stop taking CBD, note the dose and time of the last dose, and contact your doctor. Liver function tests (AST, ALT, GGT) may be ordered if liver damage is suspected. For any concerns about a drug interaction, consult a pharmacologist or a physician specializing in clinical pharmacology.
Pro tip: Keep the packaging of your oil with the batch number. In case of a problem, your doctor will be able to check the exact composition of the product.
Use a calculator so you never get the dose wrong again
The complete formula to enter into a calculator is as follows:
- Weight (kg) × target dose (mg/kg) = desired mg/day.
- mg/day ÷ mg/drop = number of drops per day.
- Divide this number into 1 or 2 doses depending on the objective.
Lord Of CBD's free dosage calculator automatically incorporates these parameters: you enter your weight, the concentration of your oil, and the bottle volume, and it returns the number of drops per dose. No manual calculation is required.
To complement the tool, here's what it's useful to note down each day in a tracking journal:
- Time of administration and number of drops.
- Feelings 1 hour later (out of 10: 1 = no effect, 10 = very marked effect).
- Possible side effects (drowsiness, headaches, etc.).
- Sleep quality the following night (if that is the intended goal).
Pro tip: Take a photo of your journal every week. If you see a doctor, you'll have a precise record of your protocol, which facilitates communication and avoids guesswork.
What I've learned after years of observing dosage errors
Most people who "didn't feel any effect" from CBD made the same mistake: they took too low a dose for too short a time and then concluded that the product wasn't working. For someone weighing 75 kg, that's less than a tenth of the recommended starting dose.
The other common mistake is the opposite: increasing the dose too quickly, experiencing drowsiness or mild anxiety, and then giving up. CBD is not a drug with an immediate and universal effect. It's a molecule whose response depends on the individual profile, the regularity of intake, and the quality of the product. A titration protocol over 3 to 4 weeks, with a monitoring log, provides a much more reliable picture than a one-week trial with random doses.
What I consistently recommend is choosing an oil whose concentration has been verified by an independent laboratory, calculating your starting dose precisely, and keeping a journal. Not because it's complicated, but because without these three elements, it's impossible to know what works.
Lord Of CBD oils to start your protocol
The premium selection includes oils with free shipping, and product sheets detailing the exact concentration and bottle volume—two essential pieces of information for accurately calculating your dose. For any questions about choosing the right concentration for your needs, the team can be reached via the contact page.
Sources
This article provides general information and is not a substitute for professional medical advice. Consult a qualified healthcare professional about your specific situation before taking any action based on this content.