Polyurethane-35
What is Polyurethane-35?
Polyurethane-35 is a synthetic high-molecular-weight polymer produced via the reaction of polyether polyols with diisocyanates, resulting in a flexible, elastic material. In cosmetics, it belongs to the category of film-forming agents primarily found in nail lacquers, topcoats, and basecoats. It functions by drying to form a thin, adherent film on the nail surface, which provides gloss, improves polish adhesion, and enhances resistance to chipping and wear. This polymer's flexibility accommodates nail movement without cracking, contributing to longer-lasting manicures. Its chemical structure allows compatibility with various solvents and resins in formulations, ensuring smooth application and even coverage. Typically clear and non-yellowing, it maintains appearance over time in nail products.
Benefits
Forms a protective, flexible film on nails for better durability.
Enhances shine and gloss in nail coatings.
Supports improved adhesion of colored polishes to the nail plate.
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 seeking long-wear nail finishes. | Those with known sensitivities to synthetic polymers. |
| Users of nail polishes wanting chip-resistant results. | Individuals prone to nail allergies from cosmetic ingredients. |
| People preferring glossy manicure effects. | Users preferring natural or polymer-free nail products. |
Safety Notes
- Rated low hazard by safety assessments for cosmetic use.
- Non-comedogenic, suitable for general application.
Frequently Asked Questions about Polyurethane-35
What is Polyurethane-35 used for?
It acts as a film-former in nail polishes and topcoats to boost durability and gloss.
Is Polyurethane-35 safe for nails?
Safety reviews indicate low hazard for typical cosmetic concentrations.
Does it clog pores?
It has a comedogenic rating of 0, making it non-pore-clogging.