What is also used to disinfect abrasive nail files and buffers used on healthy nails?

• A. Water
• B. Bleach
• C. Hydrogen peroxide
• D. Alcohol (70% or higher)

Answer: (D)

Disinfecting tools between clients relies on using a chemical that kills a broad range of microbes quickly. Alcohol at 70% or higher is commonly used to disinfect abrasive nail files and buffers that are nonporous and used on healthy nails because it effectively denatures proteins in microbes and penetrates cell walls. The 70% concentration is especially effective because the water content helps the alcohol penetrate and disrupt microorganisms, while still evaporating quickly enough for practical salon use.

Between clients, ensure the item is suitable for disinfection (nonporous items can be wiped or immersed in alcohol for the recommended contact time and then air-dried). Porous items, like emery boards, are typically discarded after each client because disinfection is unreliable on porous surfaces.

Water alone does not disinfect; bleach requires correct dilution and can be harsh on tools and surfaces; hydrogen peroxide can disinfect but may not be as reliable or practical for routine, quick turnover. Alcohol at 70% or higher offers a practical, effective option for quick sanitation of the appropriate implements.