Cetyl Ricinoleate

Cetyl Ricinoleate is an ester derived from castor oil (Ricinus communis seed oil) and cetyl alcohol. It is produced through a chemical process that combines ricinoleic acid—the primary fatty acid found in castor oil—with cetyl alcohol to create a stable, conditioning ingredient.In skincare formulations, Cetyl Ricinoleate functions as an emollient and skin-conditioning agent. It works to soften and smooth the skin surface, helping to improve the feel and appearance of the skin barrier. It is used in relatively small amounts across a small percentage of skincare products.

Cetyl Ricinoleate is an occlusive emollient, meaning it sits on the skin surface and creates a protective barrier. This barrier helps prevent water loss from the skin, which supports hydration and can improve the appearance of dry or compromised skin.As an ester of castor oil, it retains some of the conditioning properties of the parent oil whilst offering improved stability and texture in cosmetic formulations compared to raw castor oil.

Cetyl Ricinoleate is typically used in creams, serums, and balms at low concentrations. It blends well with other emollients and can be layered with humectants (such as glycerin) to enhance hydration. As with all new ingredients, patch test first if you have sensitive or reactive skin.

Cetyl Ricinoleate is generally well-tolerated and has been assessed as safe for cosmetic use. Some users may wish to note that it is derived from castor oil, which is occasionally associated with fungal acne sensitivity in susceptible individuals, though evidence for this specific ester is limited.