C12-13 Pareth-3

C12-13 Pareth-3 is a synthetic emulsifier derived from fatty alcohols. It belongs to a class of ingredients called alkyl ethoxylates, which are widely used in skincare and cosmetic formulations to help combine oil-soluble and water-soluble ingredients that would otherwise separate.In a skincare product, this ingredient serves a functional role rather than a direct therapeutic one. It stabilises emulsions—the blended mixtures of oils and water that form the base of many creams, serums and cleansers—allowing the formula to maintain a uniform texture and consistency over time.

C12-13 Pareth-3 is an amphiphilic molecule, meaning it has both water-loving and oil-loving regions. These opposing properties allow it to sit at the interface between oil and water phases in a formula, acting as a bridge that keeps them mixed rather than separating into layers.As a surfactant, it can also help lift oils and impurities from the skin surface, though at the low concentrations typically used in skincare, this cleansing action is mild and secondary to its primary emulsifying function.

No specific usage guidance is needed beyond using the product as directed. Since this is a stabilising ingredient rather than an active treatment, its presence does not require any special application technique or timing. It works behind the scenes to maintain the product's texture and consistency.

Generally well-tolerated in skincare formulations. Isolated cases of contact dermatitis have been reported, so discontinue use if redness, itching or irritation develops.