Transient posttreatment hyperpigmentation occurs in i4%-25% of patients (Grossman et al. 1996; Bjerring et al. 1998; Williams et al. 1998), and is normally related to melanocytic-induced stimulation. The causes of this hyperpigmenta-tion include delayed tanning, epidermal injury, or an immediate pigment darkening phenomenon resulting from photo-oxidation of pre-existing melanin. The darkening is usually transient, lasting only 3-4 weeks and resolves without sequelae in most individuals (McDaniel

A potentially more serious hyperpigmenta-tion resulting from epidermolysis and blistering can occur at energy thresholds higher than those associated with immediate pigment darkening. This can be associated with permanent dyschromia.

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How To Reduce Acne Scarring

How To Reduce Acne Scarring

Acne is a name that is famous in its own right, but for all of the wrong reasons. Most teenagers know, and dread, the very word, as it so prevalently wrecks havoc on their faces throughout their adolescent years.

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