PEG 400 is an abbreviation of polyethylene glycol 400, and is a colorless viscous liquid. It has many applications due to its low toxicity, and it is soluble in water, alcohols, glycerin, among other liquids. The FDA classes it as “Generally Regarded as Safe” meaning that it is safe to use as a food additive … Continue reading What is PEG 400, Polyethylene Glycol 400