Polydecene

Polydecene is a synthetic hydrocarbon derived from petroleum. It belongs to a group of ingredients commonly used in skincare formulations as emollients and texture enhancers.In skincare products, polydecene functions primarily as a skin conditioner. It helps to soften and smooth the skin surface, and is often used in moisturisers and emulsions to improve both the feel of the product on application and the overall sensory experience.

Polydecene works by forming a light occlusive layer on the skin surface. This helps to reduce transepidermal water loss—the evaporation of moisture from the skin—thereby supporting hydration.In formulations, it also serves a technical purpose: it improves how products feel and spread across the skin, making them easier to apply and more pleasant to use.

Polydecene is typically used as part of a finished product rather than applied separately. Products containing this ingredient work best when applied to damp or clean skin, as this supports the humectant and occlusive benefits of the overall formulation.

Polydecene is generally well-tolerated and considered safe for topical skincare use. It is non-irritating for most skin types, though those with specific sensitivities to synthetic hydrocarbons may wish to patch-test first.