PSI Texas State Board Nail Tech practice exam

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What role does ultraviolet light play in nail enhancements?

Cleaning agent
Polishing agent
Catalyst
Moisturizer

The correct answer is: Catalyst

Ultraviolet (UV) light serves as a catalyst in the curing process of nail enhancements, particularly with products such as gel nails. It activates the photoinitiators in UV gel products, which causes a chemical reaction that results in the hardening or curing of the gel. This process is essential for achieving a durable and long-lasting nail enhancement. The use of UV light ensures that the gel adheres properly to the natural nail, providing strength and resilience to the finished product. In contrast, other roles such as cleaning, polishing, or moisturizing do not accurately describe the function of ultraviolet light in nail enhancements. Cleaning agents are used to prepare the nail surface, polishing agents enhance shine, and moisturizers nourish the skin around the nails, but none of these processes involve the curing or hardening of gel products as UV light does. Therefore, recognizing UV light as a catalyst is key in understanding its importance in nail technology.