POLYETHYLENE
Is POLYETHYLENE safe for seborrheic dermatitis?
Polyethylene is generally a low-concern ingredient for seborrheic dermatitis when it is used as a smooth film former or texture aid. It is a large synthetic polymer rather than a fatty acid, oil or treatment active.
Database searches returned papers about polyethylene-containing delivery systems, not evidence that cosmetic Polyethylene itself feeds Malassezia or changes seb derm. Product format still matters: a rough scrub can irritate inflamed skin through friction even when the polymer is chemically inert. Avoid abrasive use during a flare.
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What is it?
A quick identity check, separate from the seb derm guidance above.
01 / 05- Material type
- Film-forming and viscosity-control polymer
- Ingredient family
- Polyolefin polymer
- Cosmetic function
- Abrasive, Film Forming, Viscosity Controlling
What is POLYETHYLENE used for in skincare?
Polyethylene is a synthetic polymer used to form films, control viscosity and change the feel or structure of cosmetics. Depending on particle size and format, it may also provide physical abrasion. Its role is mechanical or structural rather than moisturising or antifungal.