CBD products have a range of formulations—oils, edibles, sprays, capsules, and tinctures that you ingest or put under your tongue; smoking or vaping; and creams, lotions, salves, gels, and oils that you rub into your skin. There are even CBD skin patches. Kroll cautions that although topicals don’t have as strong of an effects as when you ingest or inhale them, you should still check your product for THC—if there’s enough (and you use a whole lot of it), it can get into your bloodstream through your skin and make you feel high.