PEG-90

CAS Number	25322-68-3
Chem/IUPAC Name:	Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, (90 mol EO average molar ratio)
COSING REF No:	77497

PEG-90 (Polyethylene Glycol 90) is a versatile cosmetic ingredient widely used in skincare and hair care products. This water-soluble, high-molecular-weight polymer is derived from ethylene oxide. PEG-90 functions primarily as a surfactant, emulsifier, and viscosity enhancer, helping to stabilize formulations, promote even spreading, and improve texture. Its appearance is that of a clear, colorless liquid with a thick consistency, and it can be found in various personal care items such as creams, lotions, shampoos, and conditioners. The chemical formula of PEG-90 is C₄H₁₀O₄₅.

Who supplies PEG-90 ?

BASF

What is PEG-90 used for?

PEG-90 finds various applications in the cosmetics industry due to its excellent emulsifying, surfactant, and viscosity-modifying properties. It is commonly used in skincare products such as creams, lotions, and serums to enhance their texture, spreadability, and stability. In hair care, PEG-90 can be found in shampoos and conditioners to improve product uniformity and facilitate easy rinsing. Its versatility and compatibility with other ingredients make it a valuable additive in many personal care and cosmetic formulations.

Origin

PEG-90 is synthesized through the polymerization of ethylene oxide with the aid of a catalyst, typically an alkaline metal hydroxide or alcohol. The process involves the repeated addition of ethylene oxide to create a long chain of repeating units, resulting in Polyethylene Glycol 90.

What does PEG-90 do in a formulation?

Emulsifying
Surfactant

Safety profile

PEG-90 is considered safe for cosmetic use when used in accordance with industry standards and recommended concentrations. It is generally non-toxic and non-irritating to the skin. However, some individuals with sensitive skin may experience mild irritation or allergic reactions. Further, since PEG-90 is not derived from animal-based ingredients, it can be considered vegan.