Melanin is what provides the skin a tanned look, but scars deliver it in uneven patches. An excessive amount of melanin around the higher layers of pores and skin produces hyperpigmentation.?I?U TR? M?N L?y nhân m?n chu?n Y khoa ?i?u tr? m?n th?t ?i?u tr? m?n l?ng ?I?U TR? S?O ?i?u tr? s?o r? ?i?u tr? s?o l?iWe don't present any promise as into th