The acid mantle is a very fine, slightly acidic film on the surface of the skin acting as a barrier to bacteria, viruses and other potential contaminants that might penetrate the skin.^[1] The pH of the skin is between 4 and 5.5, so it is acidic.^[2] These contaminants and other chemicals are primarily alkaline in nature and the skin's moderate acidity helps to neutralize their chemical effects.

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[edit] See also

• Sebamed

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