Colorado Cosmetology Written Practice Exam

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Study for the Colorado Cosmetology Written Exam with confidence using our comprehensive resources. Engage with a variety of questions covering critical topics in cosmetology and prepare effectively to secure your license!

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What can kill bacteria on the skin?

Antibiotics
Sunlight
Ultra violet light
Water

The correct answer is: Ultra violet light

Exposure to ultra violet light (option C) can help kill bacteria on the skin. Sunlight (option B) itself does not have the same bacteria-killing properties as ultra violet light. Antibiotics (option A) are typically prescribed to be taken internally, and, if used externally, may cause other issues such as dryness and irritation. Water (option D) does not necessarily kill bacteria on the skin, but can help to wash away dirt and oils that bacteria thrive on.