Polyurethane-11
What is Polyurethane-11?
Polyurethane-11 is a synthetic, high-molecular-weight copolymer produced through the polymerization of specific monomers like diols and diisocyanates. Commonly found in makeup such as foundations, mascaras, and lip products, as well as sunscreens and hair styling aids, it works by drying to create a thin, elastic sheath on the skin or hair. This sheath adheres tightly, boosting durability against rubbing, moisture, and movement without fully blocking pores or restricting natural skin respiration. Its flexibility prevents cracking, ensuring even application and sustained performance throughout the day. In formulations, it aids in achieving smooth textures, vibrant finishes, and reliable hold, making it a staple in long-lasting cosmetic designs.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Provides long-lasting adherence for makeup and sunscreens.
Offers resistance to water, sweat, and transfer.
Enhances shine and hold without heaviness.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals desiring all-day makeup performance. | Those with rare polyurethane sensitivities. |
| Active users needing sweat-proof protection. | Users avoiding synthetic polymers entirely. |
| People seeking better sunscreen stay-put on skin. | Persons preferring minimalist formulations. |
Safety Notes
- Large molecular size limits skin penetration.
- Reviewed safe for use in cosmetics by expert panels.
Frequently Asked Questions about Polyurethane-11
What does Polyurethane-11 do in products?
It creates a flexible film to improve wear, resistance to water and transfer, and overall product performance.
Is Polyurethane-11 safe for skin?
It has a low hazard rating and is deemed safe for cosmetic use based on regulatory reviews.
Does it cause irritation?
Evidence indicates low irritation potential in typical concentrations.