The new craze in the vaping world is nicotine salts. So many people are vaping it without understanding the differences between salt nicotine and freebased nicotine. This article discusses those differences and explains the benefits of nicotine salts.
This article discusses the different ways nicotine can be derived to be used in vape juice. There is standard nicotine, synthetic nicotine, and tobacco-free nicotine. All of which are discussed in great detail.
The link above discusses the 4 main ingredients found in vape juice. These ingredients are vegetable glycerin, propylene glycol, nicotine, and flavorings. The article goes into greater detail on these substances.