How to Choose Your First CBD Oil
Strength, spectrum and format explained.

The commonest mistake on a first purchase is to shop by percentage. A percentage is a concentration, not an amount — and what matters is how much you take at once.
The arithmetic of a bottle
One millilitre is about 20 drops. Everything follows from that: divide total milligrams by volume in millilitres for milligrams per millilitre, then by 20 for milligrams per drop.
| Bottle | Total CBD | In 1 ml | In 1 drop |
|---|---|---|---|
| 10 ml, 5% | 500 mg | 50 mg | ≈ 2.5 mg |
| 10 ml, 10% | 1000 mg | 100 mg | ≈ 5 mg |
| 30 ml, 10% | 3000 mg | 100 mg | ≈ 5 mg |
| 10 ml, 20% | 2000 mg | 200 mg | ≈ 10 mg |
1. The label
- Says
- 10% CBD
- Tells you
- Concentrationnot amount
2. The bottle
- Volume
- 10 ml
- Total CBD
- 1000 mg10 ml × 100 mg/ml
3. The drop
- Drops in the bottle
- ≈ 20020 drops per millilitre
- Per drop
- ≈ 5 mg1000 ÷ 200
4. The serving
- A 0.5 ml serving
- ≈ 10 drops
- CBD in the serving
- ≈ 50 mg
How much of that it is sensible to take is a separate question — and the answer is not ours. What the regulators say, and why the EU has no established amount: How Much CBD?
What to pick first time
- A lower concentration — easier to adjust in small steps.
- A smaller bottle — to find out whether the taste and format suit you.
- A product with a published lab report for the batch.
- Milligrams per bottle and volume both stated clearly.
Taste and format
Full spectrum has a pronounced plant taste; isolate has virtually none. If that is the sticking point, capsules and edibles solve it at the cost of precision in dosing.
Frequently asked questionsQuick answers
How much should I take?
There is no established recommended dose and we do not give one — that would be health advice. The arithmetic above tells you how many milligrams your serving contains; discuss the amount with a doctor or pharmacist, particularly if you take medication.
Sources & references
Every factual statement above rests on the documents listed. Check them yourself.
- Regulation (EU) No 1169/2011 on food information to consumershttps://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32011R1169
- Directive 2002/46/EC on food supplementshttps://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32002L0046


