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Polyisobutene is a synthetic polymer that helps form a protective film on the skin, which can reduce moisture loss. It also functions as a binder, helping to hold product ingredients together, and can contribute to a smooth texture or increased viscosity in formulations.
No specific concern data available
Safety summary
This ingredient is generally considered safe for use in cosmetics and is not known to be irritating or sensitizing to the skin.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.