Back to Ingredient Dictionary

PEG-5 COCOMONIUM METHOSULFATE

Description

PEG-5 Cocomonium Methosulfate is a quaternary ammonium compound widely used in personal care and cosmetic formulations. This synthetic ingredient functions primarily as a conditioning agent and antistatic additive in hair and skin care products. Its molecular structure consists of a coconut-derived fatty chain attached to a polyethylene glycol (PEG) backbone, with a methosulfate group providing its cationic properties.

In hair care applications, PEG-5 Cocomonium Methosulfate helps detangle hair, reduce frizz, and improve overall manageability. It forms a thin, protective film on the hair shaft, enhancing shine and smoothness without excessive buildup. In skincare, it acts as an emollient, helping to soften and moisturize the skin.

This ingredient is particularly effective in rinse-off products due to its water-solubility and ability to deposit conditioning agents onto the hair or skin surface. It is generally well-tolerated and considered safe for use in cosmetics at concentrations typically employed in formulations. However, individuals with sensitive skin should perform patch tests before regular use, as with any new skincare ingredient.