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What is the pH level of the skin?

  1. 3.5

  2. 4.5

  3. 5.5

  4. 6.5

The correct answer is: 3.5

The correct answer is A, 3.5. The pH level of the skin typically ranges between 4.5 and 6.5, with an average around 5.5. The slightly acidic pH of the skin helps to protect it from harmful bacteria and other pathogens, as well as supporting the skin's natural barrier function. A pH of 3.5 is within the normal range for skin pH, making it the most accurate option among the choices provided.