Apply glycerin with lime juice and apply daily on neck within 1 month you will see the change.
I too don't know as to how to make neck fair . I am itself trying hard to find an answer for this . If I get an answer first I'll let you know , but at the same time if you get to know the answer first you too let me know .
That's all to Tell you . See you next time ... Bye
That's all to Tell you . See you next time ... Bye