hi sir iam mounika. my neck and femurs are black since 9 years, at my child hood i don't care about this now my age is 20 while going to interview i am facing lot of problems in front of officers,friends.. 4 years back after meeting doctor i used Ranbaxy product for 5 months there is no result came hence, i stopped to used it.please help me......,From my childhood except soap no product was using.( i think reason for neck become black is when i was studying 5 th class it was necessary to ware Tie it was soo uncomfortable to me at the time too much of sweat is coming from body)