Paradoxic darkening: Hydroquinone is a bleaching agent. It will lighten any skin that it is applied to. The only known side effects are allergy (like everything else) and, if applied at a strength greater than 4%, the possibility of paradoxical darkening of the treated skin. Apply it once a day, at bedtime, to the darkened skin.
Answered 5/22/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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