I was in the process of wanting to change my hair color but have had color on top of color and didn't want to use a bleach cap. So I tried Malibu C CPR Color Pigment Remover and noticed a color difference. I then used Malibu C Crystal Gel then did one more CPR treatment and removed some more of the color. I must add that I did not have any damage while using either. I was actually able to use a lightener on my hair after these treatments and my hair did amazingly well. I was super impressed. I cannot wait to use CPR on my client. I have also used Malibu C Curl Partner with my perm clients and I must say, I fall more in love with Malibu C each time I use it.