Biolage ColorLast Conditioner is a professional-grade, low-pH conditioner designed to preserve the vibrancy and depth of color-treated hair. Infused with micro-dosed soybean oil and stearic acid, it helps prevent color fade for up to 4 weeks while adding shine and smoothness. This vegan, paraben-free formula is inspired by the fade-defying orchid and is suitable for all color-treated hair types.