This all comes down to what method of ingestion you prefer. CBD is available in a ton of different forms including dietary supplements, edibles, dried flower, vape cartridges, oils and tinctures. CBD is most commonly taken through oral methods, but there are a fair number of people that vape CBD or smoke the dried flower.
When smoking or vaping CBD, it will reach your bloodstream right away. When it hits your bloodstream, it starts to have effects on both your body and your brain. Eating CBD can take a bit longer and will depend on factors like whether or not you have eaten recently.
No matter how you prefer to ingest CBD, your body will typically start to absorb and use the CBD within an hour of you ingesting it. So, if it feels like it “isn’t working”, give it time to get into your bloodstream and begin to work.
The effects of CBD will last anywhere from an hour to three hours, but lab tests are able to detect the CBD in your bloodstream for much, much longer than that.