CBD vaping liquids, vape juice or e-liquid are incredibly popular. Inhalation provides a higher bioavailability as well as quicker onset of CBD. The CBD enters your lungs and diffuses directly into your bloodstream. The CBD enters circulation quickly because it doesn’t have to enter the digestive system or liver. Inhalation of CBD is great for treating acute symptoms that require faster relief. It’s effective within minutes and typically lasts for 2-3 hours.