E-liquids, also known as vape juices, are the liquids used in electronic cigarettes and vaping devices. They typically consist of a mixture of propylene glycol, vegetable glycerin, flavorings, and sometimes nicotine. The liquid is heated to create vapor, which users inhale, providing an alternative to traditional tobacco smoking. E-liquids come in various flavors, ranging from fruity to dessert-like options, catering to different preferences. They are available in different nicotine strengths, allowing users to choose how much nicotine they want to consume. This versatility has contributed to the popularity of vaping among those looking to reduce or quit smoking.