USP Propylene Glycol is an excellent dilution carrier for e-juice. It is known to produce smoke and right effects. Here, the principle is to vaporize a mixture of water and PG by a heating device that forms a cloud of powerful steam, propylene glycol fumes upon contact with air. Let's read more.
1 - What is USP Propylene Glycol?
PG or USP Propylene Glycol is a clear and odorless liquid with a slight viscosity and odor. It is soluble in water; that is, it dissolves in water. It is widely used as an agent for water retention. PG is a synthetic compound, which means it is made in a laboratory. The US FDA recognized propylene glycol as safe for food and human consumption.
The three forms of PG include —ethylene glycol, propylene glycol, and food-grade propylene glycol, used in various products across different industries. USP Food Grade Propylene Glycol has a 99.9% purity rate.
2 - What does USP mean?
The USP in propylene glycol refers to the product's safety and purity tests. USP stands for United States Pharmacopeia. The US Pharmacopeia created safety regulations, standards, and testing to ensure that all products were of the highest quality, purity, and potency.