Which energy source cures gel nail systems?

Which energy source cures gel nail systems?

• A. Ultraviolet Light
• B. LED Light
• C. Infrared Light
• D. Visible Light

Answer: (A)

Gel nail systems cure when their photoinitiators absorb energy and start the chemical crosslinking that hardens the gel. Ultraviolet light provides photons with enough energy to reliably activate these photoinitiators, making polymerization occur quickly and predictably. Infrared light mainly adds heat and doesn’t trigger the chemical reaction, and visible light generally doesn’t have enough energy for most gel photoinitiators. Some gels are labeled LED-curable, but the standard, widely used method for curing gels is ultraviolet light, which is why this energy source is the best answer.

Gel nail systems cure when their photoinitiators absorb energy and start the chemical crosslinking that hardens the gel. Ultraviolet light provides photons with enough energy to reliably activate these photoinitiators, making polymerization occur quickly and predictably. Infrared light mainly adds heat and doesn’t trigger the chemical reaction, and visible light generally doesn’t have enough energy for most gel photoinitiators. Some gels are labeled LED-curable, but the standard, widely used method for curing gels is ultraviolet light, which is why this energy source is the best answer.