Polyglyceryl-10 Eicosanedioate/Tetradecanedioate

Polyglyceryl-10 Eicosanedioate/Tetradecanedioate is a synthetic conditioning agent derived from polyglycerin and fatty acids. It functions as an emollient and skin-conditioning ingredient, designed to help the skin retain moisture and maintain a smoother appearance.This ingredient is used sparingly in skincare formulations—appearing in roughly 0.1% of products—typically as part of a broader moisturising system rather than as a standalone active.

This ingredient works through its emollient properties, meaning it helps coat the skin with a light conditioning film. This film reduces transepidermal water loss (TEWL)—the natural evaporation of moisture from the skin—helping the skin retain hydration more effectively.Because it is derived from glycerin-based chemistry, it integrates well into modern skincare formulations and supports the work of other moisturising ingredients rather than functioning as a primary active.

This ingredient is most effective as part of a complete moisturiser formula. There is no need to use it in isolation, and it performs best when combined with other humectants and emollients. Apply to clean, slightly damp skin as part of your regular routine for optimal hydration support.

Generally well-tolerated and considered safe for use in cosmetic products. Suitable for sensitive skin, though as with any skincare ingredient, discontinue use if irritation occurs.