What role does formaldehyde play in nail products?

Formaldehyde is primarily used in some nail polishes and treatments as a hardener. This compound helps to strengthen the nail enhancements and improve their durability. By creating a stronger bond within the polish or treatment, formaldehyde allows the product to adhere better to the nail surface, making it less prone to chipping and enhancing its overall longevity.

While formaldehyde has important functions in the cosmetic industry, it is not typically used as a preservative in creams or as a fragrance component. Additionally, it does not contribute color to nail products; its role is more functional in terms of enhancing the structural properties of nail products rather than affecting their aesthetic features.