PEG 400 (polyethylene glycol 400) is a low-molecular-weight grade of polyethylene glycol. It is a clear, colorless, viscous liquid. PEG 400 Liquid, also known as Polyethylene Glycol, is a versatile and widely used product in various industries. It is a clear, colorless, and odorless liquid that is soluble in water and many organic solvents. PEG 400 is commonly used as a solvent, lubricant, and plasticizer in pharmaceuticals, cosmetics, and personal care products. It is also used as a dispersant, emulsifier, and wetting agent in industrial applications such as coatings, adhesives, and textiles. Its low toxicity and high stability make it a popular choice for many applications.