Vince - Dark Brown Men Hair Color - His Only (HC-03)Step 1 Squeeze out the Hair Color Cream and Developer into the mixing tray given in the box and mix it well with the brush to get a good mixture. Step 2 Wear the gloves given in the box to avoid staining on hand. Step 3 Apply petroleum jelly on your forehead and skin around sideburns to avoid minor staining. Step 4 Apply the mixture with the help of given brush and comb through your hair to ensure even distribution. Step 5 Wait for 10 15 minutes and