Definition: Propylene glycol (PG) is a colorless, nearly odorless, syrupy liquid that is derived from natural gas. It is used in dozens of products that you commonly use around your house.
It is used in food – cake mixes, salad dressings, soft drinks, popcorn, food colorings, fat-free ice cream and sour cream. It also protects food from freezing, and helps as a preservative
In toiletries and cosmetics – Lotions, creams, some baby wipes (not in my brand though), shampoos, antiperspirants, cosmetics, lipstick, lubricants
In other household items – Room deodorizers, cleaners, sanitizers
And specific to the soap making and toiletry making industry, it is also used as a carrier in fragrance oils and in many melt and pour soap bases.
