Cannabidiol (CBD) is a chemical extracted from hemp and marijuana that can possibly reduce stress, anxiety, pain, and the chance of seizures without giving you a high.[1] While CBD is still being tested and is not regulated by the Food and Drug Administration (FDA), you can still buy CBD oil legally in many locations. But how do you shop for CBD, and what’s the best CBD oil? To help you out, we’ve put together some tips on choosing CBD oil and shopping for the best CBD oil available.