The Matrix Dark Envy Conditioner is perfect for darker shades of hair, especially black and dark brown at levels 1-4. It can be used both on natural and dyed hair. It has a pleasant scent of citrus, jasmine and cedar wood.Red undertones can appear on dark hair as a result of sunlight, water, chlorine, chemical treatments and thermal styling. The conditioner has a pale green colour, which gently removes unwanted shades and cools down hair colour.