Whether you can take CBD oil with you on holiday will depend entirely on the law in the country you’re travelling to.
Although CBD oils with less than 0.2% THC are legalised in many places nowadays, there are still countries that prohibit it altogether.
We’d recommend checking up on the specific place you’re travelling to to see whether they have legalised CBD oil before you travel, just in case.
If you find that you can take your CBD oil with you, make sure that you take 100ml or less with you and pack it in a clear bag with your other liquids when you go through airport security.