Kao Blaune Retouch Magic Pink Brown 14ml Without using hair color, this hair mascara for gray hair retouching keeps its color for about 5 days* at the sectioned part of the hair. Just apply it to the sectioned part of your hair that begins to show signs of gray 2-3 weeks after dyeing and dry it with a hair dryer. The color veil will stay in place as if it were one with your hair, hiding gray hair. The color veil is then firmly fixed in place as if it were one with the hair, masking gray hairs. However, the color may easily fade if the oil component gets on the colored area or if it is rubbed too hard. ■How to use Prepare a hair dryer and a comb. 1.Shake the container about 10 times with the cap closed while it clicks. 2.Hold the container upright and pull it straight out slowly. 3.Apply while combing until no gray hairs are visible. 4.Dry hair with warm air using a hair dryer, then comb through with a clean comb.