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Polyquaternium-39 is a synthetic polymer that acts as a film-forming agent and conditioning ingredient. In skincare, it helps create a smooth, pleasant feel, improves product spreadability, and can offer a mild moisturizing effect by forming a flexible film on the skin.
No specific concern data available
Safety summary
This ingredient is generally considered safe for use in cosmetic products. It has a very low potential for causing skin irritation or sensitization.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.