Most people today know about electronic cigarettes, and those who use them or have considered vaping may also know about e liquid. E liquid is the substance used to create vapor in e cigs and rechargeable vapor pens. The big draw with e liquid is that it comes in all sorts of different flavors, which gives vaping a lot more variety than smoking tobacco cigarettes. If you've had any burning questions about e liquid, now is the time to find out more. Here's what you need to know about e liquid and the thousands of vaping flavors for sale on the e cigarette market: How is vapor created? Vapor is created when the e liquid in a disposable or rechargeable electronic cigarette is heated up by the atomizer coils, which are powered by the e cig's battery. As it heats, it becomes a vapor or mist, which exits through the mouthpiece at the end of the e cig. What are PG and VG, and why do they matter? PG and VG, or propylene glycol and vegetable glycerin, are the most common bases used in e liquid. E liquids are typically available with different mixes of PG and VG. Most e liquid flavors at Vapor4Life are made with between 70% and 80% propylene glycol in order to replicate a traditional smoking experience. However, Vapor4Life also carries 7 e liquid flavors (Smooth WOW VG) that are available with a 100% VG base. VG and PG bases are also used as food additives and pharmaceuticals and have been approved as safe by the U.S. Food and Drug Administration. Depending on which carrier liquid is used in your e liquid, you may see a greater vapor cloud or taste more flavor as you vape. VG, a sweet liquid, may slightly overpower some vaping flavors for sale, but it will also produce more dense vapor clouds. PG, on the other hand, is a thinner, odorless and tasteless liquid that will carry flavor a bit better and produce a greater "throat hit," similar to smoking a cigarette, for the user. How can I choose the right e liquid? You might choose a PG or VG e liquid depending on how much throat hit, flavor, and vapor you prefer. The PG/VG ratio used at Vapor4Life is recommended for former smokers that are interested in replicating the smoking experience and getting a familiar “throat hit”. According to a New York Times article, there are around 7,000 e liquid flavors for sale, with around 250 more being introduced to the market each month. Flavors range from tobacco and menthol to fruit and dessert flavors. Take a look at the hundreds of e liquid flavors offered at Vapor4Life here. What do you like best about e liquid? Tell us in the comments section.