I am naturally very pale, but in the summer I tan well over almost my whole body. However, there is a clear line on my shoulders where I stop tanning, and it continues all the way over my chest neck and face. So basically, my body tans well, but my face does not. This is very irritating because it looks odd being so pale in comparison to the rest of my body. Please help, or tell me if there's something I can do. Thanks!