When treating people with dark-colored skin, the increase in the density of the mel – anosmes and sensitivity of the skin to inflammation should be taken into account [65]. Blistering, changes in pigmentation, scabbing, thrombophlebitis, and scar formation are some of the side effects found during removal of unwanted hair with laser [3]. Posttreatment increases in skin pigmentation in subjects with darker skin may be explained by stimulation of melanocytes. Hyperpigmentation, while having a higher incidence rate, had a median duration of 28 days [3,4]. Hypopigmentation could result from redistribution of the melanin in the keratinoyctes, suppression of melanogeniesis, or destruction of melanocytes. Liew et al. have demonstrated a decrease in epidermal melanocyte tyrosinase activity after laser treatment [69]. It has been reported that hypopigmentation induced in laser – assisted hair removal had a median duration of 120 days. The challenge of treating darker skin types is due to the increase in the number and severity of these side effects [2-6].
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