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POLYURETHANE-39 is a synthetic polymer used to create a flexible, non-tacky film on skin or hair, enhancing product wear and feel. It also acts as a suspending agent to maintain the uniform dispersion of insoluble ingredients.
Beneficial for
Safety summary
Generally considered safe for cosmetic use, as its large molecular size prevents significant skin penetration.
1% line marker
This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.