What is the vegetable glycerin present in e-liquids?

E-cigarette e-liquids contain relatively few ingredients: additives, flavorings, glycerin, propylene glycol and nicotine. Here we are talking about vegetable glycerin. So, the VG or vegetable glycerin in the e-liquid is highly estimated from the steamers in order to make more steam. It is an essential ingredient in the composition of an e-liquid. So, here is what you need to know about this product.

What is Vegetable Glycerin?

Vegetable Glycerin is the basic element in e-liquids of electronic cigarette. Also known as glycerin or glycerol, it is valued for its softening and moisturizing qualities. It is a substance naturally present in nature, in certain beverages such as wine or food. It is also used in many chemical, food, cosmetic, pharmaceutical industries, ... In this case, VG is present in our daily life as in most medicines, moisturizers, toothpastes, ready meals, ... Vegetable glycerin in e-liquid has a slightly sweet taste in the form of a viscous, odourless and colourless liquid.

How is Vegetable Glycerin made?

The term "vegetable glycerin" refers to the fact that glycerin is acquired from vegetable oil produced by a catalyzed chemical transesterification process. It is important to note that there is no glycerol naturally present in plants. It results, to a lesser extent, from intestinal digestion of lipids, hydrolysis of triglycerides of lipoproteins in the blood, and lipolysis in fat cells. Glycerol is a compound that occurs naturally in living things (animals and humans). It is a precursor of glycogen and glucose. In general, it can be preserved by two main processes: the transesterification of vegetable oils or the saponification of fats.

Advantages and disadvantages of vegetable glycerin in e-liquids

The vegetable glycerin in the e-liquid allows the steamer to have an abundant and dense vapor with an e-cigarette. That's why most manufacturers provide the e liquid 100% VG (vegetable glycerin), without propylene glycol. Based on an approach of respect for the environment and health that is generally suitable for individuals intolerant or sensitive to PG. However, an e-liquid based on vegetable glycerin also has disadvantages. First of all, this type of e liquid requires a higher temperature to vaporize, however, a high temperature causes risks of overheating which then generates unfortunate elements such as acrolein. Acrolein is a toxic element, irritating the mucous membranes and skin (and therefore an irritant for the respiratory system). Then, its viscosity tends to dirty the wicks of the resistances of the vaporizer. Its sweet taste also masks the perception of aromas. In all cases, it is important to respect the manufacturers' recommendations for use.
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