what is the explanation behind the biological principles of scrubbing of calluses during a foot spa?
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The calluses are formed by the accumulation of keratinocytes that are undifferentiated terminally and present inthe outermost layer of the skin. ... Therefore, at a foot spa, scrubbing off thecalluses is done by using keratolytic agents like salicylic acid which is usually done with a pumice stone or a calluses shaver...
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