Propylene glycol is used:
As a moisturizer in medicines, cosmetics, food, toothpaste, mouth wash, and
tobacco products
In electronic cigarettes to deliver vaporized nicotine
As an emulsification agent in Angostura and orange bitters
As a solvent for food colors and flavorings
As an ingredient, along with wax and gelatin, in the production of paintballs
As a humectant food additive, labeled as E number E1520
As a cooling agent for beer and wine glycol jacketed fermentation
tanks
As a carrier in fragrance oils
As a less-toxic antifreeze
As a solvent used in mixing photographic chemicals, such as film developers
In smoke machines to make artificial smoke for use in firefighters' training and theatrical productions
In hand sanitizers, antibacterial lotions, and saline solutions
In cryonics
As a working fluid in hydraulic presses
As a coolant in liquid cooling systems
To regulate humidity in a cigar humidor
As the killing and preserving agent in pitfall traps, usually used to capture ground beetles
To treat livestock ketosis
As the main ingredient in deodorant sticks.
To de-ice aircraft.[5]
UV Blacklite Tattoo Ink
Propylene glycol has properties similar to those of ethylene glycol (monoethylene glycol, or MEG). (Note: propylene glycol may also use the acronym MEG, but as an abbreviation of methyl ethyl glycol.) The industrial norm is to replace ethylene glycol by propylene glycol
