It doesn't work,
February 6, 2010 E. Fabiani "Luna" (New York) - See all my reviews
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This review is from: Youthair Creme 16-oz. (Misc.)
You have to put it on for 4 hours every time.
It needs a lot of free time but I did it for a month and my hair didn't change a bit.
Beside that it stinks like hair chemicals and the smell goes away only after 4 or 5 washes.
I had stinky grey hair for about a month and half and I decided to go back at my old hair color.