Common Ingredients and Their Functions
1. Film-Forming Agents
These create the smooth, hard coating on your nails after the polish dries.
Example: Nitrocellulose
Purpose: Builds that classic glossy finish and acts as the polish’s structural base.
✅ Generally considered safe, though it’s highly flammable in liquid form.
These ingredients add flexibility and help the polish stick to your nails without cracking.
Examples: Tosylamide/formaldehyde resin, camphor, triphenyl phosphate (TPHP)
Purpose: Prevents chipping, boosts shine, and ensures polish doesn’t get brittle.
⚠️ Some can be irritants or potential hormone disruptors (e.g., TPHP).

3. Solvents

Solvents keep the polish fluid until application, then evaporate to allow drying.
Examples: Ethyl acetate, butyl acetate, isopropyl alcohol
Purpose: Helps the polish spread evenly and dry quickly.
⚠️ Can be drying or irritating, especially in poorly ventilated spaces.