This question is widely searched, often alongside drug testing, so the Big CBD Product team has opened it for discussion.
There is no single answer. How long CBD stays in the body depends on the amount taken, how often, the form of the product and the person.
Studies report a half-life of a few hours after a single oral dose, and up to several days with repeated use. That said, research is still limited and results vary between individuals.
It is also worth remembering that drug tests target THC, not CBD. What matters for a test is the THC a product may contain. Our calculator helps you work out the total THC from a lab report: https://bigcbdproduct.com/en/tools/total-thc-calculator/
Have you ever tried to work out the total THC in a product you use? Which figures on the lab report did you find hardest to understand?