Wella Professionals best selling Koleston Perfect range is the brand of choice for hair colour in over 100,000 salons worldwide! Wella Koleston Perfect is a formulation for long-lasting grey coverage, intense vibrant colour, Triluxive technology, and 100 reliable colour results. With up to 66 more shine and 110 shades of luminous power, you can create vibrant, glossy, long-lasting colour - even on greys. For best results use with Wella Welloxon Perfect Developer.