I had pink hair, I was taking the color out with vitamin c tablets and dandruff shampoo but I heard this product would help me take out the color better. HORRIBLE MISTAKE. I left it on for 20 minutes and when I checked it, it was gray/light blue. I have no idea how it could possibly turn this color if I had no type of blue tones in my hair only pink and reds.. I'm devistated by the outcome of my hair.