Anyone use this product?

I have used it to tone down the gray on my hair to better match the percentage on my HP. It works very well for this. Not sure how it does it's thing but it does work. I had to use it twice to get the level I wanted... used it per instructions, showered, blow dried and saw I needed more so I did it again.

NCC

Thanks for the info.
That's exactly what I want to do, I am going grey with my next piece.
How often do you have to re apply?
Do you apply only when piece is off?

I used it with my previous piece that was less gray... so I have not had to do it again since the new one came out more gray (although they were ordered the same). With the old one I did it two different times about 4 weeks apart. How often really depends on how long your side hair is.... the roots are not as critical here since you really can't see them except for the temple which I applied a lot less coloring to anyways since it's normal for temples to be more gray.

I applied it with my hair off... it would be too difficult to do it with it on.

NCC

Thanks, that's the exact info I was looking for.