I have dark pigmentation on glabella region and upper part on nose since 2 yrs, I have taken treatment as well, I have undergone laser therapy for the same twice and have used tretinoin 0.025 cream and hydroquinone 1% for application for 1 year. The pigmentation subsides while using the cream and reappears after stopping the cream for 1-2 weeks .i am 26 years old male with no history of any allergies or pre existing disease.