PG causes an allergic reaction to BS
It’s used in asthma inhalers, food additives, cosmetics and cough syrup. It’s also used in fog machines, water-based paints and electronic cigarettes.
Propylene glycol is an organic chemical found in thousands of products. From shaving cream to your favorite foods, PG is there. Eye drops, cough medicine and sanitary swabs all contain PG in some way, shape or form.
In e cigarettes, PG is often mixed with another organic compound, Vegetable Glycerin. A mix of these compounds creates the vapor produced when users take a puff. Chemically, these two compounds have very few differences. Both are viscous liquids that are soluble in water. They are colorless, odorless, and taste sweet. PG is miscible, meaning it mixes in all proportions, forming a homogenous solution. Manufacturers of electronic cigarettes have started to market VG as a better alternative to PG, based on allergy claims.
There is evidence that disputes an allergy to PG even exist. In an article published in a 2001 edition of Occupational and Environmental Medicine, researchers found that “Propylene glycol may cause contact allergy, but there is sparse information on health effects from occupational exposure to PG.”
According to Wikipedia’s entry on PG, the chemical Propylene Glycol has been used safely for over 50 years
In a 1988 joint report by the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA), PG was designated as a Generally Recognized As Safe (GRAS) additive.
As far back as 1942, TIME Magazine ran an article touting the benefits of PG for air sterilization, especially in respirators at hospitals. That’s right, Propylene Glycol, the very compound that some e cig companies try to vilify, is a key component in life-saving machines.
We were raised with the knowledge that vegetables are healthy for people. Based on that, vegetable glycerin may sound healthier, but there is no record of any more or less cases when comparing VG to PG in peer-reviewed studies.