C20-40 Pareth-10

C20-40 Pareth-10 is a synthetic emulsifier derived from pareth compounds, designed to stabilise mixtures of water and oil in skincare formulations. It works by positioning itself at the boundary between these two immiscible substances, allowing them to blend smoothly into a single product texture.This ingredient serves a functional role rather than a direct skin-active one. Its primary purpose is cosmetic—to ensure that serums, creams, and lotions maintain a consistent, stable texture throughout their shelf life and when applied to skin.

C20-40 Pareth-10 is an emulsifier, meaning it has a dual chemical structure—one end attracts water molecules whilst the other attracts oil molecules. By positioning itself between these two phases, it creates a stable barrier that prevents them from separating back into distinct layers.This allows formulators to combine hydrating aqueous ingredients with beneficial oils or oil-soluble actives in a single, uniform product that applies smoothly and evenly to skin.

This is a background ingredient—you do not need to use it in any particular way. Simply apply your product as directed. Its presence ensures that your serum, lotion, or cream maintains its intended texture and that all ingredients blend properly on application.

C20-40 Pareth-10 is generally well-tolerated and widely used in cosmetics. Some individuals with very sensitive skin may occasionally experience mild irritation, though this is uncommon.