Photoshop :: Hair Color (Black Hair To White)

trying every layer mask combo I could think of to create a realistic shade of white hair that doesn't look like I just used the brush tool to make it.

I've tried lighting up the shadows with the curves option then using the selective color option. But all that does is make a very fake looking film to put over the eyebrows (ya it's eyebrows I'm working on, I'm trying to get them to match a white wig the subject is wearing.)

I've also tried using the solid color option, and a color overlay and that just came out weird.

Has anyone ever turned pitch black hair to white and had it still look like hair?