Polyester-4
Polyester-4 is a synthetic polymer primarily used as a film-forming agent in cosmetic formulations. It helps create a protective layer on the skin, improving the wear time and durability of cosmetic products.
key benefits
Enhances product durability and wear time
Forms a protective layer on the skin
Improves resistance to environmental factors like water and sweat
ratings
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Film-Forming Agent
what to pair with
It can be paired with moisturizing ingredients like glycerin or hyaluronic acid to balance its film-forming properties with hydration.
when to use
Polyester-4 is typically used in products like sunscreens, foundations, and long-wear cosmetics. It is best applied during the daytime.
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