Color-treated hair often loses it's color and luster over time. Inspired by nature's fade-defying orchid, Biolage Colorlast Conditioner helps maintain the color depth, tone and shine for vivid color-treated hair. Give her hair salon-vibrant color for up to 9 weeks. When using the system of Colorlast Shampoo and Conditioner vs. a non-conditioning shampoo. Low pH Conditioner moisturizes hair, extending the life of your color. Hair is left soft and detangled with extra shine and depth of color. Paraben-free formula is formulated specifically for color-treated hair.