What is a common function of nail polish remover?

Nail polish remover primarily serves the function of dissolving nail polish. This is essential for maintaining clean nails, allowing for the timely removal of old polish to make way for new applications. The active ingredients in nail polish removers, typically acetone or non-acetone solvents, work by breaking down the chemical compounds in the polish, effectively lifting it away from the nail surface.

The other choices represent functions that are not typical for nail polish removers. Strengthening nails involves using products specifically designed for that purpose, often containing proteins or vitamins. Adding shine to nails usually comes from topcoats or shine-enhancing products, not removers, which can dull the nail surface. Hydrating cuticles is a task for oils or creams formulated to nourish and moisturize the skin around the nails, not for polish removers. Thus, the primary role of dissolving nail polish is clearly the function for which nail polish removers are known and widely used.