Colorado Cosmetology Written Practice Exam

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Which substance is commonly used in salons to stop bleeding from minor cuts?

Water
Soap
Alum powder
Nail polish

The correct answer is: Alum powder

Alum powder is commonly used in salons to stop bleeding from minor cuts. Alum powder, also known as potassium alum, has astringent properties that help contract the blood vessels and stop bleeding effectively. It is a popular choice for this purpose in the beauty industry. Water, soap, and nail polish are not typically used to stop bleeding from minor cuts in salon settings.