Color-treated hair can fade and lose it's luster over time. Inspired by nature's fade-defying orchid, Biolage COLORLAST Shampoo helps maintain the color depth, tone and shine for vivid color-treated hair. Low pH shampoo for color-treated hair helps prolong color vibrancy. Gently cleanses to prevent unnecessary stripping of color. Paraben-free formula is suitable for color-treated hair.