Spreading The Truth About Propylene Glycol In E-Cigarettes
Warnings issued by big tobacco and big pharma about the dangers of propylene glycol are not grounded in scientific reality or backed by scientific research. After a study in mice at the University of Chicago’s Billings Hospital in 1942, it was thought that propylene glycol when inhaled might cause such diseases as pneumonia and other illnesses affecting the respiratory system. To determine long term effects followup studies on money and other animals were conducted. This larger study produced results that showed no ill effects from propylene glycol in the lungs.
Shouting “danger”, the FDA and tobacco companies point to an ingredient that has proven safe through many years of use. The misinformation about propylene glycol ignores one very important fact. We know e-cigarettes are safer than tobacco products when inhaled. We know smoking almost anything is safer than smoking tobacco.
PG in electronic cigarettes dilutes the nicotine in solution so it can be provided as a vapor to the user. Propylene glycol is a commonly used food additive included in the many products we eat today. It is also the substance used in fog machines and there is no warning issued to avoid breathing that fog.
Warnings about propylene glycol are not coming from the scientific community, doctors, researchers, scientific journals or nutritionists. Searching online you’ll notice the warnings about PG appear on the blogs of anti-smoking groups, sites of conspiracy theorists and natural healing sites. On several blogs the dire warning of “you are breathing antifreeze” may point out those who flunked organic chemistry. The ethylene glycol in antifreeze is not the same thing.
A tremendous amount of information can be found on the internet but it’s important to know who you are listening to. PG is used in baby wipes and even the FDA is unlikely to approve a dangerous product for use on infants. The best electronic cigarettes deliver only a very small amount of PG to the e-smoker. Some e-liquids use glycerol rather than PG as a base but propylene glycol is the most used ingredient in e-liquid solutions.
Consumers are more conscious of food additives and harmful ingredients in the foods they eat than every before. Looking at the ingredients on products you buy is a smart thing to do. We know to look carefully at labels when buying products low in sugar. Ingredients such as sucrose and fructose and various types of “syrup” may be listed and each of those ingredients is sugar.
The saccharin scare thirty years ago is a valuable example of the folly of acting on incomplete information and drawing incorrect conclusions. The FDA banned saccharine which was a very popular sweetener used as an additive in many packaged foods and. The FDA stated saccharin had caused cancer in mice and panic ensued. Companies lost a lot of money in changing the ingredients in their products and the public tossed out boxes of Sweet and Low which was a popular saccharin product.
What the FDA didn’t tell the public was that the research did not apply to people. The mice had been given huge doses of saccharin daily. Adjusting the amount to that needed for a person to develop cancer would require the person to consume at least 400 cans of diet cola every day for months. Today, saccharin is once again fully available for sale to the public.
Propylene glycol is a necessary ingredient for delivery of e-cig vapor. There is no evidence ths PG causes any danger to electronic smokers despite the efforts of tobacco companies worried about the competition.
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