Pennsylvania Cosmetology Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

A gel nail polish is specifically characterized by its requirement for UV light for curing. This curing process is crucial because it solidifies the gel product, creating a durable finish that is resistant to chipping and scratching. The chemical composition of gel polish allows it to remain pliable until exposed to the UV light, which triggers a polymerization reaction, hardening it into a long-lasting coating.

In contrast, water-based polishes do not cure in the same way and do not typically provide the same durability. While gel polishes are known for their chip resistance, this is a result of the curing process rather than a defining characteristic alone. Additionally, gel nail polish does not dry instantly; it requires a curing process with UV light and does not air-dry like traditional nail lacquer. Therefore, the requirement for UV light during the curing process is the key characteristic that distinguishes gel nail polish from other types.