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POLYETHYLENE TEREPHTHALATE

Description

Polyethylene terephthalate (PET) is a widely used synthetic polymer in the cosmetics and skincare industry. This versatile ingredient serves multiple functions, primarily as a film former and viscosity-increasing agent. PET forms a thin, flexible layer on the skin's surface, providing a smooth texture and helping to lock in moisture. Its ability to increase viscosity enhances the stability and consistency of various formulations, from lotions to serums.

In skincare products, PET acts as a binding agent, holding ingredients together and ensuring even distribution. It also contributes to the product's spreadability, allowing for easier application. PET is particularly valuable in long-wear cosmetics, as it improves adherence to the skin and increases the longevity of makeup.

While PET is generally considered safe for topical use, it's important to note that it's not biodegradable. This has led to increased scrutiny regarding its environmental impact. Some manufacturers are exploring alternatives or developing recycling processes for PET-containing products.

PET is chemically inert and resistant to degradation, which contributes to its stability in formulations. However, this characteristic also means it doesn't interact with the skin or provide direct skincare benefits beyond its physical properties.