E-juice is actually a base and you have to add in some flavors to it so you can start vaping. Base is made up of propylene glycol and vegetable glycerine. Vegetable glycerine or VG is vegetable-based, odorless and usually comes from coconut oil, soy or palm. This is what creates those enormous, pretty clouds when it is vaporized.
E-juice is it safe, is it harmless? Many discussions and blogs are actually talking about how safe it really is. Though PG and VG are based on plants, many are still having doubts because; after all it is still a cigarette. Technically, PG is not like ethylene glycol, which is harmful antifreeze and usually used for automobiles. PG, though it is antifreeze too, is food-based. It is even used for medications, deodorants and cosmetics. If it is used for these products, then we can definitely say that they are safe.
On the other hand, propylene glycol or PG is an additive for the e liquid. It helps in managing the level of moisture. Aside from PG and VG, there are other e-liquids that have different flavors from fruity to synthetic flavors. When looking for vape juice, cheap is the key. Purchase them from a manufacturer to make they are affordable and made of the best ingredients.