Back to Ingredient Dictionary

QUATERNIUM-18 METHOSULFATE

Description

Quaternium-18 Methosulfate is a cationic surfactant and conditioning agent widely used in personal care and cosmetic formulations. This synthetic quaternary ammonium compound is derived from natural fats and oils, making it a versatile ingredient in skincare and haircare products. Its primary function is to provide excellent conditioning properties, reducing static electricity and improving the manageability of hair and skin.

In skincare formulations, Quaternium-18 Methosulfate acts as an emollient and skin conditioning agent, helping to soften and smooth the skin's surface. It forms a protective film on the skin, which aids in moisture retention and provides a silky, non-greasy feel. This ingredient is particularly effective in leave-on products such as lotions, creams, and serums.

For haircare applications, Quaternium-18 Methosulfate excels in detangling and improving combability. It is often found in conditioners, leave-in treatments, and styling products. Its ability to neutralize negative charges on hair cuticles helps reduce frizz and enhance shine. The ingredient is generally well-tolerated and considered safe for use in cosmetic formulations, making it a popular choice among formulators seeking effective conditioning agents.

Products with this Ingredient