Comb away the gray quickly. Simply run this comb through hair to instantly cover gray.nFor ladies: great for root touch ups inbetween colorings.nFor men: touch up side burns, mustache and beard.nBuy Irene Gari Hair Color Gray Coverage - Irene Gari Cover Your Grey for Women Color Comb 10g/0.33oz - Black. How-to-Use: Dip comb in warm water and run through roots or the gray areas you wish to apply color to. Allow hair to dry thoroughly before you use your own comb or brush to blend the applied color.