First visit a dermatologist and get yourself diagnosed as to why you have 'darkened' . Because unless there is an underlying pathology involved there is no point in trying to get a fair color. The color that you have is genetically determined and genes cannot be changed. Only if you are suffering from a hormonal imbalance or some other disorder should you worry. FAIRNESS CREAMS AND TREATMENTS ARE A MYTH. Please understand that. Else you'll keep jumping from one doctor to the next and from one salon to the next and yet never be satisfied.