Hyperkeratosis is a common problem for black skins and because of the increased cell turnover, black skins desquamate dead skin cells more readily The accumulation of dead skin cells on the surface of the skin is what can give an ashen grey look to black skins.
Care needs to be taken in a treatment to avoid exfoliating too harshly to avoid irritation and sensitivity.
This condition is present on areas of the skin which lack pigmentation due to the basal cell layer of the epidermis no longer producing melanin. Its cause is unknown.
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