E-liquids, also known as vape juices, are the liquids used in electronic cigarettes and vaping devices. They typically consist of a base made from propylene glycol and vegetable glycerin, which are safe for consumption. E-liquids come in various flavors, ranging from fruity to dessert-like, and can contain nicotine in different concentrations or be nicotine-free. When heated in a vaping device, e-liquids produce vapor that users inhale. This process is often seen as an alternative to traditional smoking, as it eliminates many harmful chemicals found in combustible tobacco products. However, the long-term health effects of vaping are still being studied.