Tosylamide Formaldehyde Resin
Tosylamide Formaldehyde Resin is a film-forming ingredient commonly used in long-wear nail polishes and some hair styling products. It helps create a tough, glossy, chip-resistant coating that lasts longer on the nail. Shoppers will often see it listed in salon-quality lacquers and quick-dry formulas.
How it works in skincare
In cosmetics, Tosylamide Formaldehyde Resin works by forming a hard, flexible film on the nail plate once the solvents evaporate. It improves adhesion of the polish to the nail surface and increases resistance to water, detergents and daily wear, helping colour and top coats remain smooth and glossy for days. It is used in very small amounts and is considered safe for cosmetic use in the UK when formulated to current EU and UK regulations.
Key benefits
- Creates a durable, long-lasting finish on nails
- Improves chip and peel resistance
- Enhances gloss and shine retention
- Helps nail colour dry to a hard, smooth surface
- Increases water and detergent resistance
- Provides better adhesion between nail and polish layers
Best for
nail care, weak or brittle nails, those seeking long-wear manicures
Where it comes from
Tosylamide Formaldehyde Resin is a synthetic polymer produced by the reaction of toluene sulfonamide with formaldehyde. It is not derived from any plant, mineral or natural source.