This question is searched by many people around the world, so the Big CBD Product team is opening it as a space for respectful discussion.
There is no single ruling on this. Islamic scholars and halal certification bodies hold different views, and our team cannot give a religious opinion.
A few points are often raised in these discussions. CBD is not intoxicating, but many products contain traces of THC. For that reason, some people choose products with no detectable THC and check the certificate of analysis before buying. Our guide explains how to read one: https://bigcbdproduct.com/en/news/read-cbd-certificate-of-analysis/
For a personal answer, the best step is to ask your own religious authority.
If this question matters to you, what do you look for when choosing a product? Have you found clear guidance from a scholar or certification body?