Polyurethane-14

Polyurethane-14 is a synthetic polymer used in skincare formulations for its film-forming properties. It creates a thin, flexible layer on the skin's surface when applied, which can help to temporarily improve the appearance of texture and provide a smooth finish.This ingredient is relatively uncommon in skincare products, appearing in fewer than 1% of formulations. It is primarily used as a conditioning agent and for texture enhancement rather than for active therapeutic benefits.

Polyurethane-14 works by forming a flexible polymer film across the skin's surface. This film acts as a temporary barrier that can help to minimise the appearance of surface imperfections and create a smoother tactile sensation.The polymer film is water-resistant and remains on the skin until it is cleansed away, making it suitable for use in leave-on formulations. However, the effects are cosmetic rather than therapeutic—the ingredient does not penetrate the skin or alter its underlying structure.

Polyurethane-14 is typically included in formulations at low concentrations and requires no special application technique. Use the product as directed on the label. If layering with other products, apply this ingredient after serums or treatments but before heavier creams or oils, as the film-forming properties may reduce penetration of subsequent products.

Polyurethane-14 is generally considered safe for use on the skin and is well-tolerated by most people. Those with sensitivity to synthetic polymers or occluded formulations should patch-test before full application.