CBD (cannabidiol) is the oil found in the stem of hemp plants which has the THC (tetrahydrocannabinol) extracted to reach levels below 0.3 percent. CBD products have become useful to many travelers, especially when travel is long or stressful. If you’ve considered using CBD when you travel, read on to get an overview of the product and what you need to know. Cannabis is a plant that makes a thick substance full of compounds called…