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Filtering by Tag: ejuice

What are the ingredients of eJuice?

eJuice, the liquids that is used in our vapor devices, is made up of two main components.

Propylene Glycol - a moisture holder that helps retain flavoring

Vegetable Glycerin - a vegetable sugar that helps give eJuice shape

Propylene Glycol

Propylene Glycol is used in the flavor retention process in making eJuice. In the early days of eJuice, many companies were producing eJuice with at least 50% propylene glycol, resulting in slightly harsher hits and "watery" liquids. Many pharmaceutical companies began mass producing eliquids due to their access to Propylene Glycol, which is often used in many consumer products including foods and household items. There is a certain percentage of people (~10%) that have a Propylene Glycol allergy, which has led to the advancing of higher ratio Vegetable Glycerin eJuices

Vegetable Glycerin

Vegetable Glycerin is a vegetable sugar often used in cooking. This is an ingredient that can be found in niche grocery stores such as Trader Joes or Whole Foods. As vaping grows in popularity, and subohm tanks and cloud chasing becomes more of a popular market, high to 100% Vegetable Glycerin eJuice is making its way into the top liquids today. Many flavors are being produced with 70/30 or 80/20 (max VG) ratios. Due to the viscosity of vegetable glycerin, high VG eJuice helps users produce larger and denser vape clouds.


Outside of these two ingredients is the factor of flavoring, which is often the same extracts used in today's baked goods world. It's in this endless combination of flavoring types that individual and independent testing is warranted. Many companies have begun experimenting with different sweeteners and many cream flavorings have been known to test high in Diacetyl and Acetyl Propionyl, both being carcinogenic. Crystal Vapor pushes all the companies we work with to give full disclosure using independent lab testing and each company's ability to provide ISO (Lab Isolation) certification.


The final factor in eJuice is Nicotine, which is what gives eJuice and vaping the properties of smoking cessation. Nicotine is used to give users back control of their nicotine addiction. As Sub-Ohm Devices become more popular, the trend of lower to zero nicotine levels is growing stronger, with a success rate of smoking cessation higher than the patch. Nicotine is not a necessary ingredient in eJuice, and higher nicotine levels actually affect flavor negatively.  

What is the Shelf-Life of eJuice?

The liquid used in electronic cigarettes have a shelf life of about one year from the date of manufacture. During the first few weeks/months the flavors will go through a period of time called "Steeping" that enhances the flavoring over time. Some flavors will become more pronounced during this period of time as the ingredients used for flavoring become more and more integrated into the Vegetable Glycerin and Propylene Glycol used for the construction of the eJuice.

eJuice and Nicotine

Liquids with Nicotine will become more viscous over time, and the colors will become darker and more pronounced. Liquids with Nicotine naturally have a more pronounced color than their counterparts with smaller amounts to no nicotine.

High VG eJuice

Vegetable Glycerin is a vegetable sugar and is considered a food product. eJuice with a majority amount of Vegetable Glycerin tend to go bad quicker, and will become noticeably less appealing the closer the eJuice is to the one year earmark. It is best to use high VG eJuice sooner than their counterparts with a higher ratio of PG, as Propylene Glycol is simply a moisture holder and has more of a preservative effect. High PG ejuice have been known to be OK to vape after the one year mark after production.



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