CBD Oil Vaping Pen. Disposable and Ready to Use. 0.5ml. Up to 200 Puffs. CBD is an abbreviation for cannabidiol, a prominent naturally occurring cannabinoid component found in cannabis that comprises up to 40% of the plant. Cannabidiol is a cannabinoid devoid of psychoactive effect.? After THC(tetrahydrocannabinol), CBD is by far the most studied natural cannabinoid. According to many researchers, CBD may be the single most important cannabinoid ever discovered.