Aveda Men 5-Minute Natural Grey Blending is a 95% naturally derived** formula and is infused with a plant oil blend including certified organic sunflower, castor, and jojoba to help keep hair looking healthy and is designed for colorists to blend away grey right at the shampoo bowl in a quick 5 minute processing time. Customized for every shade of grey, Aveda Men 5-Minute Natural Grey Blending includes 5 pre-blended shades, ranging from light natural to dark ash which provide male guests natural looking, low maintenance grey blending specific to the look that they are after.