Biolage Colorlast Coloured Hair Conditioner Colour Protect Conditioner for Coloured Hair. Biolage Colorlast Conditioner helps preserve the colour vibrancy of colour-treated hair and helps to detangle hair and leave it feeling petal-soft. Features & Benefits: - Enriched with Orchid extract. - No Parabens. - Protects to help maintain the depth, tone, and shine of colour treated hair. - Moisturises colour-treated hair, leaving it petal-soft and shiny.