My daughter who is on a multitude of medications that keep her alive had horrible product buildup and discoloration. We used the Malibu C Brilliant Color Wellness Kit and the change was amazing. She went from her natural very dark brown with some red highlights to her original strawberry blond to light auburn. The texture of her hair also changed immensely. It was very light, soft and fluffy. Her scalp went from being very oily with dandruff to being so healthy. She looks like a totally different girl.