I still use a little concealer for the half inch strip of my own nape hair that I keep. I might give up that strip soon, but it works pretty well right now. My problem with the concealers is that, no matter which one I try, it gets onto my shirt collars every days. I have to wear a collared shirt for work. I don't use much concealer and it still happens. I use a little hairspray on top of the concealer and it still happens. I keep the "neckline" very high and it still happens. I clean my neck with 91% alcohol on cotton balls before putting on my shirt and it still happens. On the days that I haven't used concealer, i don't have this problem. Is there anything else I can do to prevent this ring around the collar from the concealer?