Oleth-3

Oleth-3 is a synthetic emulsifier derived from oleic acid and ethylene oxide. It functions to stabilise the mixture of water and oil-based ingredients in skincare products, preventing them from separating over time. This ingredient is commonly used in creams, lotions, and serums where a smooth, uniform texture is desired.As an emulsifier, oleth-3 works behind the scenes to improve product texture and stability rather than delivering a direct skincare benefit. It allows formulators to create products with varied consistencies and absorption profiles.

Oleth-3 has both water-loving (hydrophilic) and oil-loving (lipophilic) properties, which allows it to sit at the boundary between water and oil phases in a formulation. This dual nature stabilises the emulsion, preventing the product from breaking down or separating into distinct layers.The ingredient itself does not penetrate deeply into skin or target specific skin concerns; rather, it ensures that the active ingredients in the product remain evenly distributed and stable throughout the product's shelf life.

Oleth-3 is a formulation ingredient that requires no special application technique — simply use the product as directed. If you are using a product containing this ingredient and notice any signs of irritation or sensitivity, discontinue use and patch test on a small area of skin before reintroducing it to your routine.

Oleth-3 is generally recognised as safe for use in cosmetics at typical concentrations. However, individuals with sensitive skin or a history of reactions to ethoxylated ingredients should patch test products containing this ingredient.